8th Standard Maths State Board (Tamilnadu) - study material, free online tests, previous year question papers, answer keys, topper answers, centum question paper, exam tips

TN State Board 8th Maths half yearly exam question and answers - by QB Admin - Jan 01, 2024 - View & Read

8th Standard English Medium Maths Subject Term 1 Algebra Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Multiply a monomial by a monomial
−3x, 7y
2)
Multiply a monomial by a monomial
a³, -4a²b
3)
Expand 5x(2y− 3)
4)
Find the product of (2x + 3)(2x − 4)
5)
Find the missing term 6xy x _________= −12x³y

8th Standard English Medium Maths Subject Term 1 Algebra Book Back 2 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Expand (3m + 5)²
2)
Factorise the following by taking out the common factor (ax + ay) + (bx + by)
3)
Factorise the following by taking out the common factor a³− 3a²+ a −3
4)
Factorise :(7y²- 19y- 6)
5)
Pick out the like terms from the following.

8th Standard English Medium Maths Subject Term 1 Algebra Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
If the side of a square carpet is 3x²metre, then find its area
2)
If the length and breadth of a rectangular painting are 4xy³ and 3x²y. Find its area.
3)
Find the product of 2x²y², 3y²z and –z²x³
4)
Ram deposited ‘x’ number of Rs. 2000 notes, ‘y’ number of Rs.500 notes, ‘z’ number of Rs.100 notes in a bank and Velan deposited ‘3xy’ times of amount of what Ram had deposited. How much amount did Velan deposit in the bank?
5)
Multiply (2x + 5y) and (3x − 4y)

8th Standard English Medium Maths Subject Term 1 Algebra Book Back 3 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
If Guru wants to multiply the expressions (2x+3y+50) and 3xy , what is the resultant expression?
2)
Find the value of (3a + 4c)² by using (a+b)² identity.
3)
Expand y²- 16 using a²− b² identity
4)
Find the value of (103)³
5)
Expand (x + 4)³

8th Standard English Medium Maths Subject Term 1 Algebra Book Back 5 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Velu pastes ‘ 4xy ’ pictures in one page of his scrap book. How many pages will he need to paste 100x²y³pictures? (x, y are positive integers).
2)
Divide : (5y³− 25y²+ 8y) by 5y
3)
Sethu travelled (4x²+3xy²+5x)km in ‘2x’ hrs. Find his speed of travel.
4)
Factorise :2m³-5m²+9m
5)
Factorise x²+ yz + xy + xz

8th Standard English Medium Maths Subject Term 1 Algebra Book Back 5 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Factorise 49x²- 8xxy + 36y²
2)
Factorise : 49x²- 64y²
3)
Factoris 7c²+ 2c - 5
4)
Factorize: 8p³+ q³
5)
Factorise: 81x³-3y³

8th Standard English Medium Maths Subject Term 1 Geometry Book Back 1 Mark Questions with Solution updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Two similar triangles will always have ________angles
2)
If in triangles PQR and XYZ, \(\frac{PQ}{XY}=\frac{QR}{ZX}\) then they will be similar if
3)
A flag pole 15 m high casts a shadow of 3 m at 10 a.m. The shadow cast by a building at the same time is 18.6 m. The height of the building is
4)
If ΔABC～ΔPQR in which ∠A = 53^o and ∠Q = 77^o, then R is
5)
In the figure, which of the following statements is true?

8th Standard English Medium Maths Subject Term 1 Geometry Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
From the given figure, prove that ΔABC～ΔDEF
2)
In the given fi gure prove that ΔGUM ～ ΔBOX
3)
In the given figure, if ΔEAT～ΔBUN, find the measure of all angles.
4)
In the given figure, UB || AT and CU ≡ CB Prove that ΔCUB～ΔCAT and hence ΔCAT is isosceles
5)
In the given fi gure, if SW ≡ SE and ∠NWO≡∠NEO . then, prove that NS bisects WE and ∠NOW = 90°

8th Standard English Medium Maths Subject Term 1 Geometry Book Back 2 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
In the given figure, D is the midpoint of OE and ∠CDE = 90°. Prove that ΔODC ≡ ΔEDC
2)
In the figure, ∠TMA ≡ ∠IAM and ∠TAM ≡ ∠IMA . P is the midpoint of MI and N is the midpoint of AI. Prove that ΔPIN～ΔATM.
3)
Construct the following quadrilaterals with the given measurements and also find their area.
MIND, MI = 3.6 cm, ND = 4 cm, MD = 4 cm, ∠M = 50° and ∠D = 100°.
4)
Construct the following quadrilaterals with the given measurements and also find their area.
WORK, WO = 9 cm, OR = 6 cm, RK = 5 cm, ∠O = 100° and ∠R = 60°.
5)
Fill in the blanks with the correct term from the given list.
(in proportion, similar, corresponding, congruent shape, area, equal)
(i) Corresponding sides of similar triangles are _______.
(ii) Similar triangles have the same _________ but not necessarily the same size.
(iii) In similar triangles, ______ sides are opposite to equal angles.
(iv) The symbol ≡ is used to represent _______ triangles.
(v) The symbol ～ is used to represent ________ triangles

8th Standard English Medium Maths Subject Term 1 Geometry Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
If PQ || RS and ∠ONR = 30^o find ∠MON and hence ∠MOX .
2)
Find the unknowns in the following figures
3)
In the Fig if ΔPQR ～ ΔXYZ, find a and b.
4)
In Fig, if ΔPEN ～ ΔPAD, then find x and y.
5)
(Illustrating RHS similarity)
The height of a man and his shadow form a triangle similar to that formed by a nearby tree and its shadow. What is the height of the tree?

8th Standard English Medium Maths Subject Term 1 Geometry Book Back 3 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
(Illustrating AA Similarity)
In the given Fir, if ∠1 ≡ ∠3 and ∠2 ≡∠4 then, prove that ΔBIG ～ ΔFAT . Also find FA.
2)
(Illustrating SSS and SAS Congruence)
If ∠E =∠S and G is the midpoint of ES, prove that Δ GET ≡ Δ GST.
3)
(Illustrating SAS Congruence)
If CW and CT trisect OA and CO ≡ CA, prove that Δ COW ≡ Δ CAT
4)
(Illustrating RHS Congruence)
If TAP is an isosceles triangle with TA = TP and ∠TSA = 90°.
Is AS = PS? Why?
5)
In ΔPAT, the bisector of ∠P, meets AT at S. If ∠APT = 70^o and ∠ASP = 100^o, find ∠A and ∠T.

8th Standard English Medium Maths Subject Term 1 Geometry Book Back 5 Mark Questions with Solution updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Construct a quadrilateral DEAR with DE = 6 cm, EA = 5 cm, AR = 5.5cm, RD = 5.2 cm and DA = 10 cm. Also find its area.
2)
Construct a quadrilateral NICE with NI = 4.5 cm, IC = 4.3 cm, NE = 3.5 cm, NC = 5.5 cm and IE = 5 cm. Also find its area
3)
Construct a quadrilateral MATH with MA = 4 cm, AT = 3.6 cm, TH = 4.5 cm, MH = 5 cm and ∠A = 85°. Also find its area.
4)
Construct a quadrilateral ABCD with AB = 7 cm, AD = 5 cm, CD = 5 cm, ∠BAC = 50° and ∠ABC = 60°. Also find its area.
5)
Construct a quadrilateral PQRS with PQ = QR = 5 cm, ∠QPR = 50^o, ∠PRS = 40^o and ∠RPS = 80^o Also find its area.

8th Standard English Medium Maths Subject Term 1 Information Processing Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
You are going to have an ice cream or a cake. There are three flavors (chocolate, strawberry, vanilla) in ice creams and two flavors (orange or red velvet) in cakes. In how many possible ways can you choose an ice cream or the cake?
2)
In how many ways, can the teacher choose 3 students in all, one each from 10 students in VI std, 15 students in VII std and 20 students in VIII std to go to an excursion?
3)
If you have 2 school bags and 3 water bottles then, in how many different ways can you choose each one of them, while going to school ?
4)
Colour the following patterns with as few colours as possible but make sure that no two adjacent sections are of the same colour.
5)
Ramya wants to paint a pattern in her living room wall with a minimum budget. Help her to colour the pattern with 2 colours but make sure that no two adjacent boxes are the same colour. The pattern is shown in the picture.

8th Standard English Medium Maths Subject Term 1 Information Processing Book Back 2 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
The given spinner is spun twice and the two numbers got are used to form a 2 digit number. How many different 2 digits numbers are possible?
2)
Colour the following pattern with as few colours as possible but make sure that no two adjacent sections are of the same colour.
3)
Use the numbers given in the figure to form a 3 x 3 magic square.
4)
Find any four SETs among these set of cards.
5)
Think why this graph colouring is invalid?

8th Standard English Medium Maths Subject Term 1 Information Processing Book Back 3 Mark Questions with Solution updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
How many possible outcomes are there in tossing a coin
2)
What are the possible outcomes if a fair die is rolled?
3)
The teacher has trained 11 boys and 6 girls and wants to select one of them to participate in the Inter School Quiz competition. In how many ways can the teacher make this selection?
4)
In class VIII, a math club has four members M, A, T, and H. Find the number of different ways, the club can elect
(i) a leader,
(ii) a leader and an assistant leader.
5)
Madhan wants to a buy a new car. The following choices are available for him.
1) There are 2 types of cars as shown in the Figure
2) There are 5 colours available in each type as shown in Figure
3) There are 3 models available in each colour
(i) GL (standard model)
(ii) SS (sports model)
(iii) SL (luxury model)

(i) In how many different ways can Madhan buy any one of the new cars?
(ii) If the white colour is not available in Type 2, then in how many ways can Madan buy a new car among the given options?

8th Standard English Medium Maths Subject Term 2 Life Mathematics Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
12% of 250 litres is the same as ________of 150 litres.
2)
If three candidates A, B and C is a 3 school election got 153, 245 and 102 votes respectively, the percentage of votes for the winner is___________.
3)
15% of 25% of 10000 =___________.
4)
When 60 is subtracted from 60% of a number to give 60, the number is
5)
If 48% of 48 = 64% of x , then x =

8th Standard English Medium Maths Subject Term 2 Life Mathematics Book Back 1 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
The number of conversion periods, if the interest on a principal is compounded every two months is___________.
2)
The time taken for Rs.4400 to become Rs.4851 at 10%, compounded half yearly is _______.
3)
The cost of a machine is Rs.18000 and it depreciates at \(16 \frac{2}{3} \%\) annually. Its value after 2 years will be___________.
4)
The sum which amounts to Rs.2662 at 10% p.a in 3 years compounded yearly is_______.
5)
The difference between compound and simple interest on a certain sum of money for 2 years at 2% p.a is Rs 1. The sum of money is___________.

8th Standard English Medium Maths Subject Term 2 Life Mathematics Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Rewrite each underlined part using percentage language.
(i) One half of the cake is distributed to the children.
(ii) Aparna scored 7.5 points out of 10 in a competition.
(iii) The statue was made of pure silver.
(iv) 48 out of 50 students participated in sports.
(v) Only 2 persons out of 3 will be selected in the interview.
2)
48 is 32% of what number?.
3)
A Welfare Association has a sports club where 30% of the members play cricket, 28% play volleyball, 22% play badminton and the rest play indoor games. If 30 member play indoor games.
(i) How many members are there in the sports club?
(ii) How many play cricket, volleyball and badminton?
4)
If a car is sold for Rs. 200000 from its original price of Rs. 300000, find the percentage for decrease in the value of the car.
5)
A number when increased by 18% gives 236. Find the number.

8th Standard English Medium Maths Subject Term 2 Life Mathematics Book Back 2 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
If selling an article for Rs. 820 causes 10% loss on the selling price, find its cost price
2)
If the profit earned on selling an article for Rs.810 is the same as loss on selling it for Rs.530, then find the cost price of the article.
3)
By selling a speaker for Rs. 768, a man loses 20%. In order to gain 20% how much should he sell the speaker?
4)
A branded AC has a marked price of Rs. 37250. There are 2 options given for the customer.
(i) Selling Price is Rs. 38000 along with attractive gifts worth Rs. 3000 (or)
(ii) Discount of 8% but no free gifts. Which offer is better?
5)
Th e present height of a tree is 847 cm. Find its height two years ago, if it increases at 10 %p.a.

8th Standard English Medium Maths Subject Term 2 Life Mathematics Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
900 boys and 600 girls appeared in an examination of which 70% of the boys and 85%of the girls passed out in the examination. Find the total percentage of students who did not pass.
2)
If x % of 600 is 450 then, find the value of x.
3)
When a number is decreased by 25% it becomes 120. Find the number.
4)
If the price of Orid dhall after 20% increase is Rs. 96 per kg, find the original price of Orid dhall per kg.
5)
In a leadership election between two persons A and B, A wins by a margin of 192 votes. If A gets 58% of the total votes, find the total votes polled.

8th Standard English Medium Maths Subject Term 2 Life Mathematics Book Back 3 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
A mat of length 180 m is made by 15 women in 12 days. How long will it take for 32 women to make a mat of length 512 m?
2)
If 48 men working 7 hours a day can do a work in 24 days, then in how many days will 28 men working 8 hours a day can complete the same work?
3)
If 15 men take 40 days to complete a work, how long will it take if 15 more men join them to complete the same work?
4)
A and B together can do a piece of work in 16 days and A alone can do it in 48 days. How long will B done take to complete the work?
5)
X, Y and Z can do a piece of job in 4, 6 and 10 days respectively. If X,Y, and Z work together to complete, then find their separate shares if they will be paid Rs 3100 for completing the job.

8th Standard English Medium Maths Subject Term 2 Life Mathematics Book Back 5 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
If the selling price of a LED TV is equal to \(\frac{5}{4}\) of its cost price, then find the gain / profit percentage.
2)
Ranjith bought a washing machine for Rs. 16150 and paid Rs. 1350 for its transportation. Then, he sold it for Rs. 19250. Find his gain or loss percentage.
3)
A pre-owned car was bought for Rs. 240000. On repairs Rs.15000 was spent, Rs. 8500 was paid for its insurance. Then, it was sold for Rs. 258230. What is the gain or loss percentage?
4)
The cost price of 16 boxes of strawberries is equal to the selling price of 20 boxes of strawberries. Find the gain or loss percentage.

8th Standard English Medium Maths Subject Term 2 Life Mathematics Book Back 5 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
The cost price of 16 boxes of strawberries is equal to the selling price of 20 boxes of strawberries. Find the gain or loss percentage.
2)
Find the single discount which is equivalent to two successive discounts of 25% and 20% given on an article.
3)
A woman bought some eggs at the rate of 4 eggs for Rs.18 and sold them at the rate of 5 eggs for Rs. 24. She gained Rs. 90 in selling all the eggs. How many eggs did she buy?
4)
A water heater is sold by a trader for Rs. 10502 including GST at 18% . Find the marked price of the water heater and GST.
5)
A family went to a hotel and spent Rs. 350 for the food and paid extra 5% as GST. Calculate the CGST and SGST.

8th Standard English Medium Maths Subject Term 2 Algebra Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Find x and p: (i) \(\frac { 2x }{ 3 } \) - 4 = \(\frac { 10 }{ 3 } \) (ii) y+\(\frac { 1 }{ 6 } \) - 3y = \(\frac { 2 }{ 3 } \) (iii) \(\frac { 1 }{ 3 } -\frac { 1x }{ 3 } =\frac { 7x }{ 12 } +\frac { 5 }{ 4 } \)
2)
Find x: (i) – 3(4x + 9) = 21 (ii) 20 – 2 ( 5 – p) = 8 (iii) (7x – 5) – 4(2 + 5x) = 10(2 – x)
3)
Find x and m: (i)\(\frac { 3x-2 }{ 4 } =\frac { (x-3) }{ 5 } =-1\)
(ii) \(\frac { m+9 }{ 3m+15 } =\frac { 5 }{ 3 } \)
4)
One number is seven times another. If their difference is 18, find the numbers.
5)
The sum of three consecutive odd numbers is 75. Which is the largest among them?

8th Standard English Medium Maths Subject Term 2 Algebra Book Back 2 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Find x and p: (i) \(\frac { 2x }{ 3 } \) - 4 = \(\frac { 10 }{ 3 } \) (ii) y+\(\frac { 1 }{ 6 } \) - 3y = \(\frac { 2 }{ 3 } \) (iii) \(\frac { 1 }{ 3 } -\frac { 1x }{ 3 } =\frac { 7x }{ 12 } +\frac { 5 }{ 4 } \)
2)
Find x: (i) – 3(4x + 9) = 21 (ii) 20 – 2 ( 5 – p) = 8 (iii) (7x – 5) – 4(2 + 5x) = 10(2 – x)
3)
Find x and m: (i)\(\frac { 3x-2 }{ 4 } =\frac { (x-3) }{ 5 } =-1\)
(ii) \(\frac { m+9 }{ 3m+15 } =\frac { 5 }{ 3 } \)
4)
One number is seven times another. If their difference is 18, find the numbers.
5)
The length of a rectangle is \(\frac { 1 }{ 3 } \) of its breadth. If its perimeter is 64m, then find the length and breadth of the rectangle.

8th Standard English Medium Maths Subject Term 2 Algebra Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
The sum of 4 times a number and 18 is 28.
2)
Solve the equation: x − 7 = 6
3)
Solve the equation: 3x = 51
4)
Solve 2x + 5 = 9
5)
Draw the graph of y = 5 x

x -3 -1 0 2 3

y -15 -5 0 10 15

8th Standard English Medium Maths Subject Term 2 Algebra Book Back 3 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
The sum of 4 times a number and 18 is 28.
2)
Solve the equation: x − 7 = 6
3)
Solve \(\frac { 4y }{ 3 } -7=\frac { 2 }{ 5 } y\)
4)
Draw the graph of y = 5 x

x -3 -1 0 2 3

y -15 -5 0 10 15
5)
Relation between Quantity and Cost
The following table gives the quantity of milk and its cost.

Quantity of milk 5 10 15 20

Cost of milk 150 300 450 600

Plot the graph.

8th Standard English Medium Maths Subject Term 2 Algebra Book Back 5 Mark Questions with Solution updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
A bus is carrying 56 passengers with some people having Rs.8 tickets and the remaining having Rs.10 tickets. If the total money received from these passengers is Rs.500, find the number of passengers with each type of tickets.
2)
The length of a rectangular field exceeds its breadth by 9 metres. If the perimeter of the field is 154m, find the length and breadth of the field.
3)
There is a wooden piece of length 2m. A carpenter wants to cut it into two pieces such that the first piece is 40 cm smaller than twice the other piece. What is the length of the smaller piece?
4)
mother is five times as old as her daughter. After 2 years, the mother will be four times as old as her daughter. What are their present ages?
5)
From home, Rajan rides on his motorbike at 35 km/hr and reaches his office 5 minutes late. If he had ridden at 50 km/hr, he would have reached his office 4 minutes earlier. How far is his office from his home?

8th Standard English Medium Maths Subject Term 2 Geometry Book Back 1 Mark Questions with Solution updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
If Δ GUT is isosceles and right angled, then ㄥTUG is ________.
2)
The hypotenuse of a right angled triangle of sides 12cm and 16cm is __________.
3)
The area of a rectangle of length 21 cm and diagonal 29 cm is __________cm².
4)
If the square of the hypotenuse of an isosceles right triangle is 50 cm², the length of each side is ____________.
5)
The sides of a right angled triangle are in the ratio 5: 12: 13 and its perimeter is 120 units then, the sides are ______________.

8th Standard English Medium Maths Subject Term 2 Geometry Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Check whether given sides are the sides of right-angled triangles, using Pythagoras theorem.
(i) 8,15,17
(ii) 12,13,15
(iii) 30, 40, 50
(iv) 9, 40, 41
(v) 24, 45, 51
2)
Find the unknown side in the following triangles.
3)
In the figure, find PR and QR.
4)
The length and breadth of the screen of an LED-TV are 24 inches and 18 inches. Find the length of its diagonal.
5)
Find the distance between the helicopter and the ship.

8th Standard English Medium Maths Subject Term 2 Geometry Book Back 2 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
In the figure, find MT and AH.
2)
Mayan travelled 28 km due north and then 21 km due east. What is the least distance that he could have travelled from his starting point?
3)
If ∆ APK is an isosceles right angled triangle, right angled at K. Prove that AP² = 2AK².
4)
The diagonals of the rhombus is 12 cm and 16 cm. Find its perimeter. (Hint: the diagonals of rhombus bisect each other at right angles).
5)
I. Construct the following trapeziums with the given measures and also find their area.
1. AIMS with \(\overset { \_ \_ }{ AI } \) || \(\overset { \_ \_ }{ SM } \), AI = 6 cm, IM = 5 cm, AM = 9 cm and MS = 6.5 cm.
2. CUTE with \(\overset { \_ \_ }{ CD } \) || \(\overset { \_ \_ }{ ET } \), CU = 7 cm, ㄥUCE = 80⁰ CE = 6 cm and TE = 5 cm..
3. ARMY with \(\overset { \_ \_ }{ AR } \) || \(\overset { \_ \_ }{ YM } \), AR = 7 cm, RM = 6.5 cm ㄥRAY = 100⁰ and ㄥARM = 60⁰
4. CITY with \(\overset { \_ \_ }{ CI } \) || \(\overset { \_ \_ }{ YT } \), CI = 7 cm, IT = 5.5 cm, TY = 4 cm and YC = 6 cm.

8th Standard English Medium Maths Subject Term 2 Geometry Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
In the figure, AB ⊥ AC
a) What type of Δ is ABC?
b) What are AB and AC of the Δ ABC?
c) What is CB called as?
d) If AC = AB then, what is the measure of ㄥB and ㄥC?
2)
Can a right triangle have sides that measure 5cm, 12cm and 13cm?
3)
A 20- feet ladder leans against a wall at height of 16 feet from the ground. How far is the base of the ladder from the wall?
4)
A junction where two roads intersect at right angles is as shown in the figure. Find AC if AB = 8 m and BC = 15 m.
5)
Find the area of a rectangular plot of land shown in the figure.

8th Standard English Medium Maths Subject Term 2 Geometry Book Back 3 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Find LM, MN, LN and also the area of Δ LON.
2)
Δ ABC is equilateral and CD of the right triangle BCD is 8 cm. Find the side of the equilateral Δ ABC and also BD.
3)
From the figure, find x and y and verify Δ ABC is a right angled triangle.
4)
Construct a parallelogram CALF with CA = 7 cm, CF = 6 cm and AF = 10 cm. Also find its area.
5)
Construct a parallelogram BEAR with BE = 7 cm, BA = 7.5 cm and ㄥBEA = 80⁰. Also find its area.

8th Standard English Medium Maths Subject Term 2 Information Processing Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
What is the eleventh Fibonacci number?
2)
If F(n) is a Fibonacci number and n = 8, which of the following is true?
3)
Every 3rd number of the Fibonacci sequence is a multiple of _______
4)
Every _______ number of the Fibonacci sequence is a multiple of 8
5)
The difference between the 18^th and 17^th Fibonacci number is

8th Standard English Medium Maths Subject Term 2 Information Processing Book Back 1 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
There are four groups of letters in each set. Three of these sets are a like in some way while one is different. Find the one which is different.
2)
A group of letters are given. A numerical code has been given to each letter. These letters have to be unscrambled into a meaningful word. Find out the code for the word so formed from the 4 answers given.
L I N C P E
1 2 3 4 5 6
3)
Find the correct answer from the four alternatives given.
In a certain code, ‘M E D I C I N E’ is coded as ‘E O J D J E F M’, then how is ‘C O M P U T E R’ written in the same code?
4)
Find the correct answer from the four alternatives given
If the word ‘P H O N E’ is coded as ‘S K R Q H’, how will ‘R A D I O’ be coded?
5)
Praveen recently got the registration number for his new two-wheeler. Here, the number is given in the form of mirror-image. Encode the image and find the correct registration number of praveen’s two-wheeler.

8th Standard English Medium Maths Subject Term 2 Information Processing Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
In the given graph sheet draw and colour how the Fibonacci number pattern makes a spiral in the Golden Rectangle.
2)
Using repeated subtracting method find HCF of the following:
42 and 70
3)
Do the given problems by repeated subtraction method and verify the result.
4)
On a school trip, 56 girls and 98 boys went to Kanyakumari. They were divided into as many groups as possible so that there were equal numbers of girls and boys in each group. find the largest group possible? (To find the HCF using repeated division method)
5)
Kalai wants to cut identical squares as big as she can, from a piece of paper measuring 168 mm and by 196 mm. What is the length of the side of the biggest square? (To find HCF using repeated subtraction method)

8th Standard English Medium Maths Subject Term 2 Information Processing Book Back 2 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
A message like “Good Morning” written in reverse would instead be “Doog Gninrom”. In the same way decode the sentence given below:
“Ot dnatsrednu taht scitamehtam nac eb decneirepxe erehwreve ni erutan dna laer efil.”
2)
Decode the given Pigpen Cipher text and compare your answer to get the Activity 3 result.

The room number in which the treasure took place
\(\sqcap \sqcup \)
II. Place of the treasure:-

III. The name of the treasure:-
3)
In a library, 385 Math books, 297 Science books and 143 Tamil books are bundled equally in numbers. What is the maximum numbers of books possible in a bundle, for all types of books? (Use repeated division method)
4)
Using repeated division method find HCF of the following:
6765 and 610
5)
Do the given problems by repeated subtraction method and verify the result.

8th Standard English Medium Maths Subject Term 3 Rational Numbers Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
What will be the ones digit in the squares of the following numbers?
2)
Study the given numbers and justify why each of them obviously cannot be a perfect square.
3)
\(\\ \sqrt { 48 } \) is approximately equal to
4)
\(\sqrt { 128 } -\sqrt { 98 } +\sqrt { 18 } =\)
5)
\(\sqrt { 22+\sqrt { 7 } +\sqrt { 4 } } \) =

8th Standard English Medium Maths Subject Term 3 Rational Numbers Book Back 1 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
By what number should (-4)^-1 be multiplied so that the product becomes 10^-1?
2)
0.0000000002020 in scientific form is
3)
(-2)^-3x (- 2)^-2 is
4)
Which is not correct?
5)
If \(\left( \cfrac { p }{ q } \right) ^{ 1-3x }=\left( \cfrac { q }{ p } \right) ^{ \frac { 1 }{ 2 } }\), then x is __________

8th Standard English Medium Maths Subject Term 3 Rational Numbers Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Express
(i) 15² and
(ii) 19² as the sum of two consecutive positive integers.
2)
Write
(i) 10² and
(ii) 112 as the sum of consecutive odd natural numbers
3)
Find a Pythagorean triplet whose
(i) largest member is 65
(ii) smallest member is 10
4)
Find the square root of the following by repeated subtraction method.
(i) 144
(ii) 256
(iii) 784
5)
Find the smallest number by which 10985 should be divided so that the quotient is a perfect cube.

8th Standard English Medium Maths Subject Term 3 Rational Numbers Book Back 2 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Find the smallest number by which 200 should be multiplied to make it a perfect cube.
2)
Evaluate:\(\left( \cfrac { 1 }{ 2 } \right) ^{ -5 }\)
3)
Evaluate : (-3)
4)
Evaluate:\(\left( { 2 }^{ -1 }\times { 3 }^{ -1 } \right) \div { 6 }^{ -2 }\)
5)
Evaluate :\(\left(2^{-1}+3^{-1}\right) \div 6^{-1}\)

8th Standard English Medium Maths Subject Term 3 Rational Numbers Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Find the sum of the odd natural numbers 1 + 3 + 5 + 7 + ... ... ... + 99.
2)
Find the square of 345 using diagonal method.
3)
Examine if (8, 15, 17) is a Pythagorean triplet
4)
Find the square root of 64 by repeated subtraction method.
5)
Find the square root of 324 by prime factorisation

8th Standard English Medium Maths Subject Term 3 Rational Numbers Book Back 3 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Find the least number by which 250 is to be multiplied (or) divided so that the resulting number is a perfect square. Also, find the square root in that case
2)
Find the value of \(\sqrt { 256 } \)
3)
Is 400 a perfect cube?
4)
Find the cube root of 27000.
5)
Evaluate:\(\sqrt [ 3 ]{ \cfrac { 9261 }{ 8000 } } \)

8th Standard English Medium Maths Subject Term 3 Rational Numbers Book Back 5 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Find the value of \(\sqrt { 42.25 } \)
2)
Simplify:\(\sqrt { 12 } \times \sqrt { 3 } \)
3)
The area of a square field is 3136 m². Find its perimeter
4)
Simplify: (−2)⁵ x (−2)⁻³
5)
Combine the scientific notations:(3.7 x 10^-5)(2 x 10^-3)

8th Standard English Medium Maths Subject Term 3 Rational Numbers Book Back 5 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Simplify;\(\sqrt { \cfrac { 98 }{ 162 } } \)
2)
Simplify and write the answer in exponential form:
\(\left( -3 \right) ^{ 4 }\times \left( \cfrac { 5 }{ 3 } \right) ^{ 4 }\)
3)
Find x so that (-7)^{x + 2}X( - 7) ⁵= (-7) ¹⁰
4)
Combine the scientific notations:(3.7 x 10^-5)(2 x 10^-3)
5)
Write the following scientific notations in standard form: Lights travels at 1.86 \(\times\)10⁵miles per second.

8th Standard English Medium Maths Subject Term 3 Life Mathematics Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
210 men working 12 hours a day can finish a job in 18 days. How many men are required to finish the job in 20 days working 14 hours a day?
2)
A cement factory makes 7000 cement bags in 12 days with the help of 36 machines. How many bags can be made in 18 days using 24 machines?
3)
A soap factory produces 9600 soaps in 6 days working 15 hours a day. In how many days will it produce 14400 soaps working 3 hours more a day?
4)
If 6 container lorries can transport 135 tonnes of goods in 5 days, how many more lorries are required to transport 180 tonnes of goods in 4 days?
5)
A can do a piece of work in 12 hours, B and C can do it 3 hours whereas A and C can do it in 6 hours. How long will B alone take to do the same work?

8th Standard English Medium Maths Subject Term 3 Life Mathematics Book Back 2 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Carpenter A takes 15 minutes to fit the parts of a chair while Carpenter B takes 3 minutes more than A to do the same work. Working together, how long will it take for them to fit the parts for 22 chairs?
2)
If 32 men working 12 hours a day can do a work in 15 days, how many men working 10 hours a day can do double that work in 24 days?
3)
Amutha can weave a saree in 18 days. Anjali is twice as good a weaver as Amutha. If both of them weave together, in how many days can they complete weaving the saree?
4)
A, B and C can complete a work in 5 days. If A and C can complete the same work in \(7\cfrac { 1 }{ 2 } \) days and A alone in 15 days, then in how many days can B and C fi nish the work?
5)
X alone can do a piece of work in 6 days and Y alone in 8 days. X and Y undertook the work for Rs 4800. With the help of Z, they completed the work in 3 days. How much is Z’s share?

8th Standard English Medium Maths Subject Term 3 Life Mathematics Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
If a company pays Rs. 6 lakh for 15 workers for 20 days, what would it pay for 5 workers for 12 days?
2)
A and B together can do a piece of work in 16 days and A alone can do it in 48 days. How long will B done take to complete the work?
3)
A works 3 times as fast as B and is able to complete a task in 24 days less than the days taken by B. Find the time in which they can complete the work together.
4)
A and B can do a piece of work in 12 days and 9 days respectively. They work on alternate days starting with A on the first day. In how many days will the work be completed?
5)
X, Y and Z can do a piece of job in 4, 6 and 10 days respectively. If X,Y, and Z work together to complete, then find their separate shares if they will be paid Rs 3100 for completing the job.

8th Standard English Medium Maths Subject Term 3 Life Mathematics Book Back 3 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
If 81 students can do a painting on a wall of length 448 m in 56 days. How many students can do the painting on a similar type of wall of length 160 m in 27 days?
2)
A and B together can do a piece of work in 16 days and A alone can do it in 48 days. How long will B done take to complete the work?
3)
A works 3 times as fast as B and is able to complete a task in 24 days less than the days taken by B. Find the time in which they can complete the work together.
4)
P and Q can do a piece of work in 20 days and 30 days respectively. They started the work together and Q left after some days of work and P finished the remaining work in 5 days. After how many days from the start did Q leave?
5)
A and B can do a piece of work in 12 days and 9 days respectively. They work on alternate days starting with A on the first day. In how many days will the work be completed?

8th Standard English Medium Maths Subject Term 3 Geometry Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
a) Where does the circumcentre lie in the case of
(i) An acute-angled triangle.
(ii) An obtuse-angled triangle.
(iii) A right-angled triangle.
b) Where does the orthocentre lie in the case of
(i) An acute-angled triangle.
(ii) An obtuse-angled triangle.
(iii) A right-angled triangle
2)
Fill in the blanks:

In the triangle ABC,
(i) The angle bisector is _______
(ii) The altitude is _______
(iii) The median is ______
3)
In right triangle ABC, what is the length of altitude drawn from the vertex A to BC?
4)
In triangle XYZ, YM is the angle bisector of ㄥY and ㄥY= is 100^o
Find ㄥXYM and ㄥZYM.
5)
In triangle PQR, PS is a median and QS = 3.5 cm, then find QR?

8th Standard English Medium Maths Subject Term 3 Geometry Book Back 2 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
If I is the incentre of ΔXYZ, ∠IYZ = 30° and ∠IZY = 40° , find ∠YXZ .
2)
In ΔDEF, DN, EO, FM are medians and point P is the centroid. Find the following

(i) IF DE = 44, then DM = ?
(ii) IF PD = 12, then PN = ?
(iii) If DO = 8, then FD = ?
(iv) IF OE = 36 then EP = ?
3)
Construct the following rhombuse with the given measurement and also find their area
MARK, AK =7.5 cm and ∠A = 80°
4)
Construct the following rectangle with the given measurement and also find their area
SAND, SA =5.6 cm and SN = 4.4 cm
5)
Construct the following square with the given measurement and also find their area
REST, ET = 8 cm

8th Standard English Medium Maths Subject Term 3 Geometry Book Back 3 Mark Questions with Solution updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
In the figure, ABC is a triangle and AM is one of its medians. If BM = 3.5 cm, find the length of the side BC.
2)
In the figure, ABC is a triangle and CD is one of its medians.
If AD = 9x − 13 and BD = 4x + 2, find the length of the side AB.
3)
In the figure G is the centroid of the triangle XYZ.
(i) If GL = 2.5 cm, find the length XL.
(ii) If YM = 9.3 cm, find the length GM.
4)
XYZ is a triangle and G is its centroid. If GP = 2.5 cm, GY = 6 cm and ZR = 12 cm, find XP, QY and GR.
5)
In ΔABC, S is the circumcentre, BC = 72 cm and DS = 15 cm. Find the radius of its circumcircle.

8th Standard English Medium Maths Subject Term 3 Geometry Book Back 5 Mark Questions with Solution updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Construct a rhombus ROSE with RO = 5 cm and RS = 8 cm. Also find its area.
2)
Construct a rhombus NEST with NS = 9 cm and ET = 8 cm. Also find its area
3)
Construct a rectangle BEAN with BE = 5 cm and BN = 3 cm. Also find its area
4)
Construct a rectangle LIME with LI = 6 cm and IE = 7 cm. Also find its area.
5)
Construct a square RAMP of a diagonal 8 cm. Also find its area.

8th Standard English Medium Maths Subject Term 3 Statistics Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Data is a collection of________
2)
The number of times an observation occurs in the given data is called______
3)
The difference between the largest value and the smallest value of the given data is_______
4)
The data that can take values between a certain range is called________
5)
Inclusive series is a ________series.

8th Standard English Medium Maths Subject Term 3 Statistics Book Back 1 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
In a class interval the upper limit of one class is the lower limit of the other class. This is ________series.
2)
The graphical representation of ungrouped data is ________
3)
Histogram is a graph of a ________ frequency distribution.
4)
A ________ is a line graph for the graphical representation of the continuous frequency distribution.
5)
The graphical representation of grouped data is________

8th Standard English Medium Maths Subject Term 3 Statistics Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
The continuous series of

10 -20

24-34

38-48

52-62
2)
Income from various sources for Government of India from a rupee is given below. Draw a pie chart.

Source Corporation tax Income tax Customs Excise duties Service Tax Others

Income (in paise) 19 16 9 14 10 32
3)
Monthly expenditure of Kumaran’s family is given below. Draw a suitable Pie chart.

Particulars Food Education Rent Transport Miscellaneous

Expenses (in %) 50 % 20 % 15 % 5 % 10 %

Also
1. Find the amount spent for education if Kumaran spends Rs.6000 for Rent.
2. What is the total salary of Kumaran?
3. How much did he spend more for food than education
4)
Which of the following data can be represented in a histogram?
(i) The number of mountain climbers in the age group 20 to 60.
(ii) Production of cycles in different years.
(iii) The number of students in each class of a school.
(iv) The number votes polled from 7 am to 6 pm in an election.
(v) The wickets fallen from 1 over to 50th over in a one day cricket match.
5)
In a village, there are 570 people who have cell phones. An NGO survey their cell phone usage.
Based on this survey a histogram is drawn. Answer the following questions.
(i) How many people use the cell phone for less than 3 hours?
(ii) How many of them use the cell phone for more than 5 hours?
(iii) Are people using cell phone for less than1 hour?

8th Standard English Medium Maths Subject Term 3 Statistics Book Back 2 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Write any five points from the given pie chart information regarding pollutants entering in the oceans.
2)
In a study of dental problem, the following data were obtained.

Ages 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80

No. of patients 5 13 25 14 30 35 43 50

Represent the above data by a frequency polygon
3)
Draw a pie chart for the given table.

Continent Asia Africa North America South America Europe Australia Antarctica

Area 30 % 20 % 16 % 12 % 7 % 6 % 9 %

4)

Form a continuous frequency distribution table and draw histogram from the following data.

Age (in years)	No. of persons
Under 5	1
Under 10	12
Under 20	26
Under 25	27
Under 30	35
Under 35	38
Under 40	45
Under 45	48
Under 50	53

5)
Draw a histogram for the following data.

Mid Value (x) 15 25 35 45 55 65 75

Frequency (f) 12 24 30 18 26 10 8

8th Standard English Medium Maths Subject Term 3 Statistics Book Back 3 Mark Questions with Solution updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Form an ungrouped frequency distribution table for the weight of 25 students in STD IV given below and answer the following questions.
25, 24, 20, 25, 16, 15, 18, 20, 25, 16, 20, 16, 15, 18, 25, 16, 24, 18, 25, 15, 27, 20, 20, 27, 25.
(i) Find the range of the weights.
(ii) How many of the students has the highest weight in the class?
(iii) What is the weight to which more number of students belong to?
(iv) How many of them belong to the least weight?
2)
The EB bill(in Rs.) of each of the 26 houses in a village are given below. Construct the frequency table

215 200 120 350 800 600 350 400 180 210 170 305 204

220 425 540 315 640 700 790 340 586 660 785 290 300
3)
The number of hours spent by a school student on various activities on a working day is given below. Construct a pie chart.

Activity Sleep School Play Home work Other

No of hours 8 6 2 3 5

1. Find the percentage of sleeping hours.
2. By what angle is home work more than play?
3. By what angle are other activities less than sleep?
4)
Draw a pie diagram to represent the following data, which shows the expenditure of paddy cultivation in 2 acres of land.

Particulars Seeds Ploughing Wages Fertilizer Harvest Others

Expenses (Rs) 2000 6000 10000 7000 8000 3000

Also,
1. Find the percentage of the head in which he had spent more?
2. What percentage of money was spent for seeds?
5)
Draw a suitable pie chart for the following data relating to the cost of construction of a house.

Particulars Bricks Steel Cement Timber Labour Others

Expenses: 10% 15% 25% 10% 20% 20%

Also, find how much was spent on labour if Rs.55000 was spent for cement.

8th Standard English Medium Maths Subject Term 3 Statistics Book Back 5 Mark Questions with Solution updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Draw a histogram for the following table which represents the age groups from 100 people in a village.

Ages 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90

Number of people 11 9 8 20 25 10 8 6 3
2)
The following table gives the number of literate females in the age group 10 to 45 years in a town.

Age group 10-15 16-21 22-27 28-33 34-39 40-45

No. of females 350 920 850 480 230 200

Draw a histogram to represent the above data
3)
The following is the distribution of pocket money of 200 students in a school.

Pocket money 10-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90

Number of Students 25 40 33 28 30 20 16 8

Draw a frequency polygon using histogram.
4)
Draw a frequency polygon for the following data using histogram

marks 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90 90-100

Number of students 5 8 10 18 25 22 20 13 6 3
5)
Draw a frequency polygon for the following data without using histogram

Class interval (Marks) 10-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90

Frequency 4 6 8 12 10 14 5 7

8th Standard English Medium Maths Subject Term 3 Information Processing Book Back 2 Mark Questions with Solution updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Find the best buy of the following purchases:
(i) A pack of 5 chocolate bars for Rs175 or 3 chocolate bars for Rs. 114?
(ii) Basker buy 1 1/2 dozen of eggs for Rs. 81 and Aruna buy 15 eggs for Rs. 64.5
2)
Using the given picture find the total special offer price of fresh sweets and bakery products to buy 1/2 kg laddu, 1 kg cake, 6 pockets of bread.
3)
Using the given picture prepare a price list.
Suppose you plan to buy 1½ kg of apple, 2 kg of pomegranate, 2 kg of banana, 3 kg of mango, ½ kg of papaya, 3 kg of onion, 1½ kg of tomato, and 1 kg of carrot in shop 1, how much will you save compared to shop 2.

4)

Consider that you are going to buy the toys that are given below in the price list. Prepare a comparison price chart table and fi nd where will you get the best off er price and also fi nd how much you save?

[The amount to the nearest rupee as Rs.789.84 is rounded off to Rs.790]

Comparison Chart Table
		Golden Toys					Toys & Trades Mart
S.No.	Product Name	Original Price	Offer %	Amount that you saved	Round the amount you saved to the nearest rupees	Sale Price	Original Price	Offer %	Amount that you saved	Sale Price
1
2.
3.
4.
	Total Amount

5)
The sizes in MB, for nine computer files are given below.
53 82 61 38 23 41 16 34 42
The files are to be grouped into folders. Each folder may contain a maximum limit of 100 MB.
(a) Determine the minimum number of folders required.
(b) Use the first-fit method to group the files into folders.
(c) Use the first-fit decreasing method to group the files into folders.

8th Standard English Medium Maths Subject Term 1 Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
The number which is subtracted from \(\frac { -6 }{ 11 } \) to get \(\frac { 8 }{ 9 } \) is
2)
Which of the following rational numbers is the greatest?
3)
The standard form of the sum \(\frac { 3 }{ 4 } +\frac { 5 }{ 6 } +\left( \frac { -7 }{ 12 } \right) \) is
4)
The sum of the digits of the denominator in the simplest form of \(\frac { 112 }{ 528 } \)
5)
The rational number (numbers) which has (have) additive inverse is (are)

8th Standard English Medium Maths Subject Term 1 Book Back 1 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
The number which is subtracted from \(\frac { -6 }{ 11 } \) to get \(\frac { 8 }{ 9 } \) is
2)
Which of the following rational numbers is the greatest?
3)
The rational number (numbers) which has (have) additive inverse is (are)
4)
Which of the following pairs is equivalent?
5)
Which of the following illustrates the inverse property for addition?

8th Standard English Medium Maths Subject Term 1 Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
List five rational numbers between
\(\frac { -1 }{ 2 } \) and \(\frac { 3 }{ 5 } \)
2)
List five rational numbers between
–1.2 and -2.3
3)
Find the rational numbers represented by each of the question marks marked on the following number lines.
4)
Compare the following pairs of rational numbers.
\(\frac { 2 }{ 3 } ,\frac { 4 }{ 5 } \)
5)
Which of the following properties hold for subtraction of rational numbers? Why?
identity

8th Standard English Medium Maths Subject Term 1 Book Back 2 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
List five rational numbers between
–2 and 0
2)
Draw the number line and represent the following rational numbers on it.
\(\frac { 15 }{ -4 } \)
3)
Verify the closure property for addition and multiplication of the rational numbers \(\frac { -5 }{ 7 } \) and \(\frac { 8 }{ 9 } \)
4)
If \(\frac { 3 }{ 4 } \) of a box of apples weighs 3 kg and 225 gm, how much does a full box of apples weight?
5)
If A walks \(\frac { 7 }{ 4 } \) km and then jogs \(\frac { 3 }{ 5 } \) find the total distance covered by A. How much did A walk rather than jog?

8th Standard English Medium Maths Subject Term 1 Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Write the following decimal numbers as rationals.
0.25
2)
Write the following decimal numbers as rationals.
−5.8
3)
Reduce to the standard form
\(\frac { 48 }{ -84 } \)
4)
Find which rational number is greater?
\(\frac { 5 }{ -4 } ,\frac { -11 }{ -7 } \)
5)
Write the following rational numbers in descending and ascending order.
\(\frac { -3 }{ 5 } ,\frac { 7 }{ -10 } ,\frac { -15 }{ 20 } ,\frac { 14 }{ -30 } ,\frac { -8 }{ 15 } \)

8th Standard English Medium Maths Subject Term 1 Book Back 3 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Write the following decimal numbers as rationals.
3.0
2)
Add: \(\frac { -5 }{ 9 } ,\frac { -4 }{ 3 } ,\frac { 7 }{ 12 } \)
3)
Find \(\frac { -5 }{ 8 } \times 7\)
4)
The product of two rational numbers is \(\frac { -2 }{ 3 } \) If one number is \(\frac { 3 }{ 7 } \) find the other.
5)
Evaluate: \(\left( \frac { 4 }{ 3 } -\left( \frac { -3 }{ 2 } \right) \right) +\left( \frac { -5 }{ 3 } \div \frac { 30 }{ 12 } \right) +\left( \frac { -12 }{ 9 } \times \frac { -27 }{ 16 } \right) \)

8th Standard English Medium Maths Subject Term 1 Book Back 5 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Find the area of the blue shaded and the grey shaded part of the given Figure. (π = 3.14)
2)
Nishanth has a key-chain which is in the form of an equilateral triangle and a semicircle attached to a square of side 5 cm as shown in the Figure. Find its area.(π = 3.14, √3 = 1.732)
3)
A 3- fold invitation card is given with measures as in the Figure. Find its area.
4)
Find the area of the shaded region in the square of side 10 cm as given in the figure. \(\left(\pi=\frac{22}{7}\right)\)
5)
Velu pastes ‘ 4xy ’ pictures in one page of his scrap book. How many pages will he need to paste 100x²y³pictures? (x, y are positive integers).

8th Standard English Medium Maths Subject Term 1 Book Back 5 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Find the perimeter and area of the given Figure. \(\left( \pi =\frac { 22 }{ 7 } \right) \)
2)
Thiyagu has fixed a door for the entrance of his house which is in the shape of a semicircle over a rectangle. The total height and width of the door is 9 feet and 3.5 feet respectively. Find the area of the door. \(\left( \pi =\frac { 22 }{ 7 } \right) \)
3)
Find the area of the door mat whose measures are as given in the Figure
(π = 3.14)
4)
Seenu wants to buy a floor mat for his kitchen at home as given in the figure. If the cost of the mat is Rs. 20 per square foot, what will be the cost of the entire mat?
5)
Find the area of the irregular polygon field whose measures are as given in the figure.

8th Standard English Medium Maths Subject Term 2 Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
If three candidates A, B and C is a 3 school election got 153, 245 and 102 votes respectively, the percentage of votes for the winner is___________.
2)
When 60 is subtracted from 60% of a number to give 60, the number is
3)
The time taken for Rs.4400 to become Rs.4851 at 10%, compounded half yearly is _______.
4)
The sum which amounts to Rs.2662 at 10% p.a in 3 years compounded yearly is_______.
5)
What sum of money will earn Rs.500 as simple interest in 1 year at 5% per annum?

8th Standard English Medium Maths Subject Term 2 Book Back 1 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
12% of 250 litres is the same as ________of 150 litres.
2)
15% of 25% of 10000 =___________.
3)
If 48% of 48 = 64% of x , then x =
4)
By selling a flower pot for Rs. 528, a woman gains 20%. At what price should she sell it to gain 25%?
5)
What is the marked price of a hat which is bought for Rs. 210 at 16% discount?

8th Standard English Medium Maths Subject Term 2 Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
48 is 32% of what number?.
2)
A Welfare Association has a sports club where 30% of the members play cricket, 28% play volleyball, 22% play badminton and the rest play indoor games. If 30 member play indoor games.
(i) How many members are there in the sports club?
(ii) How many play cricket, volleyball and badminton?
3)
If the difference between 75% of a number and 60% of the same number is 82.5, then find 20% of that number.
4)
A number when increased by 18% gives 236. Find the number.
5)
If the profit earned on selling an article for Rs.810 is the same as loss on selling it for Rs.530, then find the cost price of the article.

8th Standard English Medium Maths Subject Term 2 Book Back 2 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Rewrite each underlined part using percentage language.
(i) One half of the cake is distributed to the children.
(ii) Aparna scored 7.5 points out of 10 in a competition.
(iii) The statue was made of pure silver.
(iv) 48 out of 50 students participated in sports.
(v) Only 2 persons out of 3 will be selected in the interview.
2)
A bank pays Rs. 240 as interest for 2 years for a sum of Rs. 3000 deposited as savings. Find the rate of interest given by the bank.
3)
If a car is sold for Rs. 200000 from its original price of Rs. 300000, find the percentage for decrease in the value of the car.
4)
By selling a speaker for Rs. 768, a man loses 20%. In order to gain 20% how much should he sell the speaker?
5)
If a mattress is marked for Rs.7500 and is available at two successive discounts of 10% and 20%, find the amount to be paid by the customer

8th Standard English Medium Maths Subject Term 2 Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
If x % of 600 is 450 then, find the value of x.
2)
If the price of Orid dhall after 20% increase is Rs. 96 per kg, find the original price of Orid dhall per kg.
3)
The income of a person is increased by 10% and then decreased by 10%. Find the change in his income.
4)
Akila scored 80% in an examination. If her score was 576 marksAkila scored 80% of marks in an examination. If her score was 576 marks, then find the maximum marks of the examination.
5)
The population of a town is increasing at the rate of 6% p.a. It was 238765 in the year 2018. Find the population in the year 2016 and 2020.

8th Standard English Medium Maths Subject Term 2 Book Back 3 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
900 boys and 600 girls appeared in an examination of which 70% of the boys and 85%of the girls passed out in the examination. Find the total percentage of students who did not pass.
2)
When a number is decreased by 25% it becomes 120. Find the number.
3)
In a leadership election between two persons A and B, A wins by a margin of 192 votes. If A gets 58% of the total votes, find the total votes polled.
4)
If the population in a town has increased from 20000 to 25000 in a year, fi nd the percentage increase in population.
5)
Find the C.I for the data given below:
(i) Principal = Rs. 4000, r = 5% p.a, n = 2 years, interest compounded annually.
(ii) Principal = Rs. 5000, r = 4% p.a, n = 1 \(\frac { 1 }{ 2 } \) years, interest compounded half-yearly.
(ii) Principal = Rs. 30000, r = 7% for I year, r = 8% for II year, compounded annually.
(iv) Principal = Rs. 10000, r = 8% p.a, n = 2 \(\frac { 3 }{ 4 } \) years, interest compounded yearly.

8th Standard English Medium Maths Subject Term 2 Book Back 5 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
If the selling price of a LED TV is equal to \(\frac{5}{4}\) of its cost price, then find the gain / profit percentage.
2)
Ranjith bought a washing machine for Rs. 16150 and paid Rs. 1350 for its transportation. Then, he sold it for Rs. 19250. Find his gain or loss percentage.
3)
The cost price of 16 boxes of strawberries is equal to the selling price of 20 boxes of strawberries. Find the gain or loss percentage.
4)
The price of a rain coat was slashed from Rs. 1060 to Rs. 901 by a shopkeeper in the winter season to boost the sales. Find the rate of discount given by him.
5)
A woman bought some eggs at the rate of 4 eggs for Rs.18 and sold them at the rate of 5 eggs for Rs. 24. She gained Rs. 90 in selling all the eggs. How many eggs did she buy?

8th Standard English Medium Maths Subject Term 2 Book Back 5 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
By selling a bicycle for Rs. 4275, a shopkeeper loses 5%. For how much should he sell it to have a profit of 5%?
2)
A pre-owned car was bought for Rs. 240000. On repairs Rs.15000 was spent, Rs. 8500 was paid for its insurance. Then, it was sold for Rs. 258230. What is the gain or loss percentage?
3)
The marked price of an LED tube light is Rs. 550 and the shopkeeper offers a discount of 8% on it. Find the selling price of the LED tube light.
4)
Find the single discount which is equivalent to two successive discounts of 25% and 20% given on an article.
5)
A water heater is sold by a trader for Rs. 10502 including GST at 18% . Find the marked price of the water heater and GST.

8th Standard English Medium Maths Subject Term 3 Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Study the given numbers and justify why each of them obviously cannot be a perfect square.
2)
\(\sqrt { 128 } -\sqrt { 98 } +\sqrt { 18 } =\)
3)
Which is not correct?
4)
Data is a collection of________
5)
The difference between the largest value and the smallest value of the given data is_______

8th Standard English Medium Maths Subject Term 3 Book Back 1 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
What will be the ones digit in the squares of the following numbers?
2)
\(\\ \sqrt { 48 } \) is approximately equal to
3)
\(\sqrt { 22+\sqrt { 7 } +\sqrt { 4 } } \) =
4)
The number of digits in the square root of 123454321 is
5)
By what number should (-4)^-1 be multiplied so that the product becomes 10^-1?

8th Standard English Medium Maths Subject Term 3 Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Write
(i) 10² and
(ii) 112 as the sum of consecutive odd natural numbers
2)
Examine if each of the following is a perfect square:
(i) 725
(ii) 190
(iii) 841
(iv) 1089
3)
Find the least square number which is divisible by each of the numbers 8,12 and 15.
4)
Find the square root by long division method.
(i)17956
(ii) 11025
(iii) 6889
(iv) 1764
(v) 418609
5)
Find the square root of each of the following fractions.
(i) \(\cfrac { 144 }{ 221 } \)
(ii) \(7\cfrac { 18 }{ 49 } \)
(iii) \(6\cfrac { 1 }{ 4 } \)
(iv) \(4\cfrac { 25 }{ 36 } \)

8th Standard English Medium Maths Subject Term 3 Book Back 2 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Express
(i) 15² and
(ii) 19² as the sum of two consecutive positive integers.
2)
Find the square root by prime factorisation method
(i) 1156
(ii) 4761
(iii) 9025
3)
Find the least number by which 1800 should be multiplied so that it becomes a perfect square. Also, find the square root of the perfect square thus obtained
4)
Is 2352 a perfect square? If not, find the smallest number by which 2352 must be multiplied so that the product is a perfect square. Find the square root of the new number
5)
Estimate the value of the following square roots to the nearest whole number:
(i) \(\sqrt { 440 } \)
(ii) \(\sqrt { 800 } \)
(iii) \(\sqrt { 1020 } \)

8th Standard English Medium Maths Subject Term 3 Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Find the square of 345 using diagonal method.
2)
Find the square root of 64 by repeated subtraction method.
3)
Is 108 a perfect square number
4)
Find the value of \(\sqrt { 256 } \)
5)
Find the smallest number by which 675 must be multiplied to obtain a perfect cube

8th Standard English Medium Maths Subject Term 3 Book Back 3 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Find the sum of the odd natural numbers 1 + 3 + 5 + 7 + ... ... ... + 99.
2)
Examine if (8, 15, 17) is a Pythagorean triplet
3)
Find the square root of 324 by prime factorisation
4)
Find the least number by which 250 is to be multiplied (or) divided so that the resulting number is a perfect square. Also, find the square root in that case
5)
Is 400 a perfect cube?

8th Standard English Medium Maths Subject Term 3 Book Back 5 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Simplify:\(\sqrt { 12 } \times \sqrt { 3 } \)
2)
Simplify:\(\sqrt { 2\cfrac { 7 }{ 9 } } \)
3)
The area of a square field is 3136 m². Find its perimeter
4)
Find the value of 4⁻³
5)
Simplify: (−2)⁵ x (−2)⁻³

8th Standard English Medium Maths Subject Term 3 Book Back 5 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Simplify : \(\\ \cfrac { { 3 }^{ 2 } }{ { 3 }^{ -2 } } \)
2)
Simplify and write the answer in exponential form:
\(\left( { 3 }^{ 5 }\div { 3 }^{ 8 } \right) ^{ 5 }\times { 3 }^{ -5 }\)
3)
Find x so that (-7)^{x + 2}X( - 7) ⁵= (-7) ¹⁰
4)
Combine the scientific notations: (7 x 10 ²) (5.2 x 10⁷)
5)
Write the following scientific notations in standard form: 2.27 \(\times\) 10^-4

8th Standard English Medium Maths Subject Term 1 Rational Numbers Book Back 1 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
The number which is subtracted from \(\frac { -6 }{ 11 } \) to get \(\frac { 8 }{ 9 } \) is
2)
Which of the following rational numbers is the greatest?
3)
\(\frac { -5 }{ 4 } \) is a rational number which lies between
4)
The standard form of the sum \(\frac { 3 }{ 4 } +\frac { 5 }{ 6 } +\left( \frac { -7 }{ 12 } \right) \) is
5)
The sum of the digits of the denominator in the simplest form of \(\frac { 112 }{ 528 } \)

8th Standard English Medium Maths Subject Term 1 Rational Numbers Book Back 1 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Which of the following illustrates the inverse property for addition?
2)
Closure property is not true for division of rational numbers because of the number
3)
\(\frac { 1 }{ 2 } -\left( \frac { 3 }{ 4 } -\frac { 5 }{ 6 } \right) \neq \left( \frac { 1 }{ 2 } -\frac { 3 }{ 4 } \right) -\frac { 5 }{ 6 } \) illustrates that subtraction does not satisfy the ________ property for rational numbers.
4)
\(\left( 1-\frac { 1 }{ 2 } \right) \times \left( \frac { 1 }{ 2 } -\frac { 1 }{ 4 } \right) \div \left( \frac { 3 }{ 4 } -\frac { 1 }{ 2 } \right) \)=
5)
Which of the following is not an equivalent fraction of \(\frac{8}{12}\)?

8th Standard English Medium Maths Subject Term 1 Rational Numbers Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
List five rational numbers between
–2 and 0
2)
Write four rational numbers equivalent to
\(\frac { -7 }{ 6 } \)
3)
Using average, write 3 rational numbers between \(\frac { 14 }{ 5 } \) and \(\frac { 16 }{ 3 } \)
4)
Divide: \(\frac { -21 }{ 5 } \) by \(\frac { -7 }{ -10 } \)
5)
Compare the following pairs of rational numbers.
\(\frac { 3 }{ -4 } ,\frac { -1 }{ 2 } \)

8th Standard English Medium Maths Subject Term 1 Rational Numbers Book Back 2 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Find the rational numbers represented by each of the question marks marked on the following number lines.
2)
If \(\frac { 3 }{ 4 } \) of a box of apples weighs 3 kg and 225 gm, how much does a full box of apples weight?
3)
In a map, if 1 inch refers to 120 km, then find the distance between two cities B and C which are \(4\frac { 1 }{ 6 } \) inches and \(3\frac { 1 }{ 3 } \) inches from the city A which is in between the cities B and C.
4)
If \(\frac { 1 }{ 4 } \) of a ragi adai weighs 120 grams, what will be the weight of \(\frac { 2 }{ 3 } \) of the same ragi adai?
5)
Divide \(\frac{7}{36}\) by \(\frac{35}{81}\)

8th Standard English Medium Maths Subject Term 1 Rational Numbers Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Write the following decimal numbers as rationals.
3.0
2)
Write the following decimal numbers as rationals.
1.15
3)
Write the following rational numbers in descending and ascending order.
\(\frac { -3 }{ 5 } ,\frac { 7 }{ -10 } ,\frac { -15 }{ 20 } ,\frac { 14 }{ -30 } ,\frac { -8 }{ 15 } \)
4)
Add: \(\frac { -6 }{ 11 } ,\frac { 8 }{ 11 } ,\frac { -12 }{ 11 } \)
5)
Subtract \(\left( -2\frac { 6 }{ 11 } \right) \) from \(\left( -4\frac { 5 }{ 22 } \right) \)

8th Standard English Medium Maths Subject Term 1 Rational Numbers Book Back 3 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Write the following decimal numbers as rationals.
3.0
2)
Find 6 rational numbers between \(\frac { -7 }{ 11 } \) and \(\frac { 5 }{ -9 } \)
3)
One roll of ribbon is \(18\frac { 3 }{ 4 } \) m long. Sankari has four full rolls and one – third of a roll. How many meters of ribbon does Sankari have in total?
4)
Find the rational numbers that should be added and subtracted that will make the sum \(3\frac { 1 }{ 2 } +1\frac { 3 }{ 4 } +2\frac { 3 }{ 8 } \) to the nearest whole number.
5)
In the NEET exam, out of a total of 180 questions, a Jeyanth answered \(\frac { 19 }{ 30 } \) of the questions correctly and \(\frac { 5 }{ 18 } \) of the questions incorrectly. How many questions did Jeyanth not attend at all?

8th Standard English Medium Maths Subject Term 1 Measurements Book Back 2 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Find the central angle of the shaded sectors (each circle is divided into equal sectors).

Sectors

Central angle of each sector (θ°)
2)
For the sectors with given measures, find the length of the arc, area and perimeter . (π = 3.14)
(i) central angle 45º, r = 16 cm
(ii) central angle 120º, d = 12.6 cm
3)
Find the central angle of each of the sectors whose measures are given below. \(\left( \pi =\frac { 22 }{ 7 } \right) \)

S.No area (A) length of the arc (l) radius (r)

(i) 462 cm² - 21 cm

(iii) 44 m 35 m
4)
A circle of radius 120 m is divided into 8 equal sectors. Find the length of the arc of each of the sectors.
5)
A circle of radius 70 cm is divided into 5 equal sectors. Find the area of each of the sectors.

8th Standard English Medium Maths Subject Term 1 Measurements Book Back 2 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Find the area of the glass painting which has a triangle on a square as given in the figure.
2)
Find the area of the irregular polygon shaped fields given below.
3)
Which 3-D shapes do the following nets represent? Draw them.
4)
For each solid, three views are given. Identify for each solid, the corresponding top, front and side (T, F and S) views.

Solid Three views
5)
Can a polyhedron have 12 faces, 22 edges and 17 vertices?

8th Standard English Medium Maths Subject Term 1 Measurements Book Back 3 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
The radius of a sector is 21cm and its central angle is 120°. Find the length of the arc
2)
The radius of a sector is 21cm and its central angle is 120°. Find area of the sector
3)
The radius of a sector is 21cm and its central angle is 120°. Find perimeter of sector.
4)
Find the central angle and area of a palm leaf fan (sector) of radius 10.5 cm and whose perimeter is 43 cm \(\left( \pi =\frac { 22 }{ 7 } \right) \)
5)
A circular shaped gymnasium ring of radius 35 cm is divided into 5 equal arcs shaded with different colours. Find the length of each of the arcs.

8th Standard English Medium Maths Subject Term 1 Measurements Book Back 3 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
A spinner of radius 7.5 cm is divided into 6 equal sectors. Find the area of each of the sectors.
2)
From the three vertices of an equilateral triangle of side 12 cm, Nishanth cuts sectors of 5 cm radius each and forms the following shape. Find the area of that shape. (π = 3.14)
3)
Pradeep wants to make a semicircular arch design at the entrance of his house with three equal sectors, as shown in the Fig.2.19 to be fitted in the iron frame. Find the length of the iron frame required and also the area of each of the sectors for which the mirrors to be fixed.
4)
Kamalesh has a dining table, circular in shape of radius 70 cm, whereas Tharun has a circular quadrant dining table of radius 140 cm. Whose dining table has a greater area? \(\left(\pi=\frac{22}{7}\right)\)
5)
Four identical medals, each of diameter 7 cm are placed as shown in Figure. Find the area of the shaded region between the medals. \(\left(\pi=\frac{22}{7}\right)\).

8th Standard English Medium Maths Subject Term 1 Measurements Book Back 5 Mark Questions with Solution Part - I updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Find the perimeter and area of the given Figure. \(\left( \pi =\frac { 22 }{ 7 } \right) \)
2)
Find the area of the blue shaded and the grey shaded part of the given Figure. (π = 3.14)
3)
Thiyagu has fixed a door for the entrance of his house which is in the shape of a semicircle over a rectangle. The total height and width of the door is 9 feet and 3.5 feet respectively. Find the area of the door. \(\left( \pi =\frac { 22 }{ 7 } \right) \)
4)
Nishanth has a key-chain which is in the form of an equilateral triangle and a semicircle attached to a square of side 5 cm as shown in the Figure. Find its area.(π = 3.14, √3 = 1.732)
5)
Find the area of the door mat whose measures are as given in the Figure
(π = 3.14)

8th Standard English Medium Maths Subject Term 1 Measurements Book Back 5 Mark Questions with Solution Part - II updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
Find the perimeter and area of the given Figure. \(\left( \pi =\frac { 22 }{ 7 } \right) \)
2)
A 3- fold invitation card is given with measures as in the Figure. Find its area.
3)
Seenu wants to buy a floor mat for his kitchen at home as given in the figure. If the cost of the mat is Rs. 20 per square foot, what will be the cost of the entire mat?
4)
Find the area of the shaded region in the square of side 10 cm as given in the figure. \(\left(\pi=\frac{22}{7}\right)\)
5)
Find the area of the irregular polygon field whose measures are as given in the figure.

8th Standard English Medium Maths Subject Term 1 Algebra Book Back 1 Mark Questions with Solution updated Book back Questions - by Question Bank Software - May 13, 2022 - View & Read

1)
The product of 7p³ and (2p²)² is
2)
The missing terms in the product - 3m3n x 9(_) = ___________m⁴n³ are
3)
If the area of a square is 36x⁴y²t hen, its side is______
4)
If the area of a rectangle is 48m²n³ and whose length is 82mn² then, its breadth is______
5)
If the area of a rectangular land is(a²- b²)− sq.units whose breadth is (a - b) then, its length is__________

8th Standard English Medium Maths Subject Term 3 Book Back 5 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Simplify : \(\\ \cfrac { { 3 }^{ 2 } }{ { 3 }^{ -2 } } \)
2)
Simplify and write the answer in exponential form:
\(\left( { 3 }^{ 5 }\div { 3 }^{ 8 } \right) ^{ 5 }\times { 3 }^{ -5 }\)
3)
Find x so that (-7)^{x + 2}X( - 7) ⁵= (-7) ¹⁰
4)
Combine the scientific notations: (7 x 10 ²) (5.2 x 10⁷)
5)
Write the following scientific notations in standard form: 2.27 \(\times\) 10^-4

8th Standard English Medium Maths Subject Term 3 Book Back 5 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Simplify:\(\sqrt { 12 } \times \sqrt { 3 } \)
2)
Simplify:\(\sqrt { 2\cfrac { 7 }{ 9 } } \)
3)
The area of a square field is 3136 m². Find its perimeter
4)
Find the value of 4⁻³
5)
Simplify: (−2)⁵ x (−2)⁻³

8th Standard English Medium Maths Subject Term 3 Book Back 3 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Find the sum of the odd natural numbers 1 + 3 + 5 + 7 + ... ... ... + 99.
2)
Examine if (8, 15, 17) is a Pythagorean triplet
3)
Find the square root of 324 by prime factorisation
4)
Find the least number by which 250 is to be multiplied (or) divided so that the resulting number is a perfect square. Also, find the square root in that case
5)
Is 400 a perfect cube?

8th Standard English Medium Maths Subject Term 3 Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Find the square of 345 using diagonal method.
2)
Find the square root of 64 by repeated subtraction method.
3)
Is 108 a perfect square number
4)
Find the value of \(\sqrt { 256 } \)
5)
Find the smallest number by which 675 must be multiplied to obtain a perfect cube

8th Standard English Medium Maths Subject Term 3 Book Back 2 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Express
(i) 15² and
(ii) 19² as the sum of two consecutive positive integers.
2)
Find the square root by prime factorisation method
(i) 1156
(ii) 4761
(iii) 9025
3)
Find the least number by which 1800 should be multiplied so that it becomes a perfect square. Also, find the square root of the perfect square thus obtained
4)
Is 2352 a perfect square? If not, find the smallest number by which 2352 must be multiplied so that the product is a perfect square. Find the square root of the new number
5)
Estimate the value of the following square roots to the nearest whole number:
(i) \(\sqrt { 440 } \)
(ii) \(\sqrt { 800 } \)
(iii) \(\sqrt { 1020 } \)

8th Standard English Medium Maths Subject Term 3 Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Write
(i) 10² and
(ii) 112 as the sum of consecutive odd natural numbers
2)
Examine if each of the following is a perfect square:
(i) 725
(ii) 190
(iii) 841
(iv) 1089
3)
Find the least square number which is divisible by each of the numbers 8,12 and 15.
4)
Find the square root by long division method.
(i)17956
(ii) 11025
(iii) 6889
(iv) 1764
(v) 418609
5)
Find the square root of each of the following fractions.
(i) \(\cfrac { 144 }{ 221 } \)
(ii) \(7\cfrac { 18 }{ 49 } \)
(iii) \(6\cfrac { 1 }{ 4 } \)
(iv) \(4\cfrac { 25 }{ 36 } \)

8th Standard English Medium Maths Subject Term 3 Book Back 1 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
What will be the ones digit in the squares of the following numbers?
2)
\(\\ \sqrt { 48 } \) is approximately equal to
3)
\(\sqrt { 22+\sqrt { 7 } +\sqrt { 4 } } \) =
4)
The number of digits in the square root of 123454321 is
5)
By what number should (-4)^-1 be multiplied so that the product becomes 10^-1?

8th Standard English Medium Maths Subject Term 3 Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Study the given numbers and justify why each of them obviously cannot be a perfect square.
2)
\(\sqrt { 128 } -\sqrt { 98 } +\sqrt { 18 } =\)
3)
Which is not correct?
4)
Data is a collection of________
5)
The difference between the largest value and the smallest value of the given data is_______

8th Standard English Medium Maths Subject Term 2 Book Back 5 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
By selling a bicycle for Rs. 4275, a shopkeeper loses 5%. For how much should he sell it to have a profit of 5%?
2)
A pre-owned car was bought for Rs. 240000. On repairs Rs.15000 was spent, Rs. 8500 was paid for its insurance. Then, it was sold for Rs. 258230. What is the gain or loss percentage?
3)
The marked price of an LED tube light is Rs. 550 and the shopkeeper offers a discount of 8% on it. Find the selling price of the LED tube light.
4)
Find the single discount which is equivalent to two successive discounts of 25% and 20% given on an article.
5)
A water heater is sold by a trader for Rs. 10502 including GST at 18% . Find the marked price of the water heater and GST.

8th Standard English Medium Maths Subject Term 2 Book Back 5 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
If the selling price of a LED TV is equal to \(\frac{5}{4}\) of its cost price, then find the gain / profit percentage.
2)
Ranjith bought a washing machine for Rs. 16150 and paid Rs. 1350 for its transportation. Then, he sold it for Rs. 19250. Find his gain or loss percentage.
3)
The cost price of 16 boxes of strawberries is equal to the selling price of 20 boxes of strawberries. Find the gain or loss percentage.
4)
The price of a rain coat was slashed from Rs. 1060 to Rs. 901 by a shopkeeper in the winter season to boost the sales. Find the rate of discount given by him.
5)
A woman bought some eggs at the rate of 4 eggs for Rs.18 and sold them at the rate of 5 eggs for Rs. 24. She gained Rs. 90 in selling all the eggs. How many eggs did she buy?

8th Standard English Medium Maths Subject Term 2 Book Back 3 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
900 boys and 600 girls appeared in an examination of which 70% of the boys and 85%of the girls passed out in the examination. Find the total percentage of students who did not pass.
2)
When a number is decreased by 25% it becomes 120. Find the number.
3)
In a leadership election between two persons A and B, A wins by a margin of 192 votes. If A gets 58% of the total votes, find the total votes polled.
4)
If the population in a town has increased from 20000 to 25000 in a year, fi nd the percentage increase in population.
5)
Find the C.I for the data given below:
(i) Principal = Rs. 4000, r = 5% p.a, n = 2 years, interest compounded annually.
(ii) Principal = Rs. 5000, r = 4% p.a, n = 1 \(\frac { 1 }{ 2 } \) years, interest compounded half-yearly.
(ii) Principal = Rs. 30000, r = 7% for I year, r = 8% for II year, compounded annually.
(iv) Principal = Rs. 10000, r = 8% p.a, n = 2 \(\frac { 3 }{ 4 } \) years, interest compounded yearly.

8th Standard English Medium Maths Subject Term 2 Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
If x % of 600 is 450 then, find the value of x.
2)
If the price of Orid dhall after 20% increase is Rs. 96 per kg, find the original price of Orid dhall per kg.
3)
The income of a person is increased by 10% and then decreased by 10%. Find the change in his income.
4)
Akila scored 80% in an examination. If her score was 576 marksAkila scored 80% of marks in an examination. If her score was 576 marks, then find the maximum marks of the examination.
5)
The population of a town is increasing at the rate of 6% p.a. It was 238765 in the year 2018. Find the population in the year 2016 and 2020.

8th Standard English Medium Maths Subject Term 2 Book Back 2 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Rewrite each underlined part using percentage language.
(i) One half of the cake is distributed to the children.
(ii) Aparna scored 7.5 points out of 10 in a competition.
(iii) The statue was made of pure silver.
(iv) 48 out of 50 students participated in sports.
(v) Only 2 persons out of 3 will be selected in the interview.
2)
A bank pays Rs. 240 as interest for 2 years for a sum of Rs. 3000 deposited as savings. Find the rate of interest given by the bank.
3)
If a car is sold for Rs. 200000 from its original price of Rs. 300000, find the percentage for decrease in the value of the car.
4)
By selling a speaker for Rs. 768, a man loses 20%. In order to gain 20% how much should he sell the speaker?
5)
If a mattress is marked for Rs.7500 and is available at two successive discounts of 10% and 20%, find the amount to be paid by the customer

8th Standard English Medium Maths Subject Term 2 Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
48 is 32% of what number?.
2)
A Welfare Association has a sports club where 30% of the members play cricket, 28% play volleyball, 22% play badminton and the rest play indoor games. If 30 member play indoor games.
(i) How many members are there in the sports club?
(ii) How many play cricket, volleyball and badminton?
3)
If the difference between 75% of a number and 60% of the same number is 82.5, then find 20% of that number.
4)
A number when increased by 18% gives 236. Find the number.
5)
If the profit earned on selling an article for Rs.810 is the same as loss on selling it for Rs.530, then find the cost price of the article.

8th Standard English Medium Maths Subject Term 2 Book Back 1 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
12% of 250 litres is the same as ________of 150 litres.
2)
15% of 25% of 10000 =___________.
3)
If 48% of 48 = 64% of x , then x =
4)
By selling a flower pot for Rs. 528, a woman gains 20%. At what price should she sell it to gain 25%?
5)
What is the marked price of a hat which is bought for Rs. 210 at 16% discount?

8th Standard English Medium Maths Subject Term 2 Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
If three candidates A, B and C is a 3 school election got 153, 245 and 102 votes respectively, the percentage of votes for the winner is___________.
2)
When 60 is subtracted from 60% of a number to give 60, the number is
3)
The time taken for Rs.4400 to become Rs.4851 at 10%, compounded half yearly is _______.
4)
The sum which amounts to Rs.2662 at 10% p.a in 3 years compounded yearly is_______.
5)
What sum of money will earn Rs.500 as simple interest in 1 year at 5% per annum?

8th Standard English Medium Maths Subject Term 1 Book Back 5 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Find the perimeter and area of the given Figure. \(\left( \pi =\frac { 22 }{ 7 } \right) \)
2)
Thiyagu has fixed a door for the entrance of his house which is in the shape of a semicircle over a rectangle. The total height and width of the door is 9 feet and 3.5 feet respectively. Find the area of the door. \(\left( \pi =\frac { 22 }{ 7 } \right) \)
3)
Find the area of the door mat whose measures are as given in the Figure
(π = 3.14)
4)
Seenu wants to buy a floor mat for his kitchen at home as given in the figure. If the cost of the mat is Rs. 20 per square foot, what will be the cost of the entire mat?
5)
Find the area of the irregular polygon field whose measures are as given in the figure.

8th Standard English Medium Maths Subject Term 1 Book Back 5 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Find the area of the blue shaded and the grey shaded part of the given Figure. (π = 3.14)
2)
Nishanth has a key-chain which is in the form of an equilateral triangle and a semicircle attached to a square of side 5 cm as shown in the Figure. Find its area.(π = 3.14, √3 = 1.732)
3)
A 3- fold invitation card is given with measures as in the Figure. Find its area.
4)
Find the area of the shaded region in the square of side 10 cm as given in the figure. \(\left(\pi=\frac{22}{7}\right)\)
5)
Velu pastes ‘ 4xy ’ pictures in one page of his scrap book. How many pages will he need to paste 100x²y³pictures? (x, y are positive integers).

8th Standard English Medium Maths Subject Term 1 Book Back 3 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Write the following decimal numbers as rationals.
3.0
2)
Add: \(\frac { -5 }{ 9 } ,\frac { -4 }{ 3 } ,\frac { 7 }{ 12 } \)
3)
Find \(\frac { -5 }{ 8 } \times 7\)
4)
The product of two rational numbers is \(\frac { -2 }{ 3 } \) If one number is \(\frac { 3 }{ 7 } \) find the other.
5)
Evaluate: \(\left( \frac { 4 }{ 3 } -\left( \frac { -3 }{ 2 } \right) \right) +\left( \frac { -5 }{ 3 } \div \frac { 30 }{ 12 } \right) +\left( \frac { -12 }{ 9 } \times \frac { -27 }{ 16 } \right) \)

8th Standard English Medium Maths Subject Term 1 Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Write the following decimal numbers as rationals.
0.25
2)
Write the following decimal numbers as rationals.
−5.8
3)
Reduce to the standard form
\(\frac { 48 }{ -84 } \)
4)
Find which rational number is greater?
\(\frac { 5 }{ -4 } ,\frac { -11 }{ -7 } \)
5)
Write the following rational numbers in descending and ascending order.
\(\frac { -3 }{ 5 } ,\frac { 7 }{ -10 } ,\frac { -15 }{ 20 } ,\frac { 14 }{ -30 } ,\frac { -8 }{ 15 } \)

8th Standard English Medium Maths Subject Term 1 Book Back 2 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
List five rational numbers between
–2 and 0
2)
Draw the number line and represent the following rational numbers on it.
\(\frac { 15 }{ -4 } \)
3)
Verify the closure property for addition and multiplication of the rational numbers \(\frac { -5 }{ 7 } \) and \(\frac { 8 }{ 9 } \)
4)
If \(\frac { 3 }{ 4 } \) of a box of apples weighs 3 kg and 225 gm, how much does a full box of apples weight?
5)
If A walks \(\frac { 7 }{ 4 } \) km and then jogs \(\frac { 3 }{ 5 } \) find the total distance covered by A. How much did A walk rather than jog?

8th Standard English Medium Maths Subject Term 1 Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
List five rational numbers between
\(\frac { -1 }{ 2 } \) and \(\frac { 3 }{ 5 } \)
2)
List five rational numbers between
–1.2 and -2.3
3)
Find the rational numbers represented by each of the question marks marked on the following number lines.
4)
Compare the following pairs of rational numbers.
\(\frac { 2 }{ 3 } ,\frac { 4 }{ 5 } \)
5)
Which of the following properties hold for subtraction of rational numbers? Why?
identity

8th Standard English Medium Maths Subject Term 1 Book Back 1 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
The number which is subtracted from \(\frac { -6 }{ 11 } \) to get \(\frac { 8 }{ 9 } \) is
2)
Which of the following rational numbers is the greatest?
3)
The rational number (numbers) which has (have) additive inverse is (are)
4)
Which of the following pairs is equivalent?
5)
Which of the following illustrates the inverse property for addition?

8th Standard English Medium Maths Subject Term 1 Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
The number which is subtracted from \(\frac { -6 }{ 11 } \) to get \(\frac { 8 }{ 9 } \) is
2)
Which of the following rational numbers is the greatest?
3)
The standard form of the sum \(\frac { 3 }{ 4 } +\frac { 5 }{ 6 } +\left( \frac { -7 }{ 12 } \right) \) is
4)
The sum of the digits of the denominator in the simplest form of \(\frac { 112 }{ 528 } \)
5)
The rational number (numbers) which has (have) additive inverse is (are)

8th Standard English Medium Maths Subject Term 3 Information Processing Book Back 2 Mark Questions with Solution - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Find the best buy of the following purchases:
(i) A pack of 5 chocolate bars for Rs175 or 3 chocolate bars for Rs. 114?
(ii) Basker buy 1 1/2 dozen of eggs for Rs. 81 and Aruna buy 15 eggs for Rs. 64.5
2)
Using the given picture find the total special offer price of fresh sweets and bakery products to buy 1/2 kg laddu, 1 kg cake, 6 pockets of bread.
3)
Using the given picture prepare a price list.
Suppose you plan to buy 1½ kg of apple, 2 kg of pomegranate, 2 kg of banana, 3 kg of mango, ½ kg of papaya, 3 kg of onion, 1½ kg of tomato, and 1 kg of carrot in shop 1, how much will you save compared to shop 2.

4)

Consider that you are going to buy the toys that are given below in the price list. Prepare a comparison price chart table and fi nd where will you get the best off er price and also fi nd how much you save?

[The amount to the nearest rupee as Rs.789.84 is rounded off to Rs.790]

Comparison Chart Table
		Golden Toys					Toys & Trades Mart
S.No.	Product Name	Original Price	Offer %	Amount that you saved	Round the amount you saved to the nearest rupees	Sale Price	Original Price	Offer %	Amount that you saved	Sale Price
1
2.
3.
4.
	Total Amount

5)
The sizes in MB, for nine computer files are given below.
53 82 61 38 23 41 16 34 42
The files are to be grouped into folders. Each folder may contain a maximum limit of 100 MB.
(a) Determine the minimum number of folders required.
(b) Use the first-fit method to group the files into folders.
(c) Use the first-fit decreasing method to group the files into folders.

8th Standard English Medium Maths Subject Term 3 Statistics Book Back 5 Mark Questions with Solution - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Draw a histogram for the following table which represents the age groups from 100 people in a village.

Ages 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90

Number of people 11 9 8 20 25 10 8 6 3
2)
The following table gives the number of literate females in the age group 10 to 45 years in a town.

Age group 10-15 16-21 22-27 28-33 34-39 40-45

No. of females 350 920 850 480 230 200

Draw a histogram to represent the above data
3)
The following is the distribution of pocket money of 200 students in a school.

Pocket money 10-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90

Number of Students 25 40 33 28 30 20 16 8

Draw a frequency polygon using histogram.
4)
Draw a frequency polygon for the following data using histogram

marks 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90 90-100

Number of students 5 8 10 18 25 22 20 13 6 3
5)
Draw a frequency polygon for the following data without using histogram

Class interval (Marks) 10-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90

Frequency 4 6 8 12 10 14 5 7

8th Standard English Medium Maths Subject Term 3 Statistics Book Back 3 Mark Questions with Solution - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Form an ungrouped frequency distribution table for the weight of 25 students in STD IV given below and answer the following questions.
25, 24, 20, 25, 16, 15, 18, 20, 25, 16, 20, 16, 15, 18, 25, 16, 24, 18, 25, 15, 27, 20, 20, 27, 25.
(i) Find the range of the weights.
(ii) How many of the students has the highest weight in the class?
(iii) What is the weight to which more number of students belong to?
(iv) How many of them belong to the least weight?
2)
The EB bill(in Rs.) of each of the 26 houses in a village are given below. Construct the frequency table

215 200 120 350 800 600 350 400 180 210 170 305 204

220 425 540 315 640 700 790 340 586 660 785 290 300
3)
The number of hours spent by a school student on various activities on a working day is given below. Construct a pie chart.

Activity Sleep School Play Home work Other

No of hours 8 6 2 3 5

1. Find the percentage of sleeping hours.
2. By what angle is home work more than play?
3. By what angle are other activities less than sleep?
4)
Draw a pie diagram to represent the following data, which shows the expenditure of paddy cultivation in 2 acres of land.

Particulars Seeds Ploughing Wages Fertilizer Harvest Others

Expenses (Rs) 2000 6000 10000 7000 8000 3000

Also,
1. Find the percentage of the head in which he had spent more?
2. What percentage of money was spent for seeds?
5)
Draw a suitable pie chart for the following data relating to the cost of construction of a house.

Particulars Bricks Steel Cement Timber Labour Others

Expenses: 10% 15% 25% 10% 20% 20%

Also, find how much was spent on labour if Rs.55000 was spent for cement.

8th Standard English Medium Maths Subject Term 3 Statistics Book Back 2 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Write any five points from the given pie chart information regarding pollutants entering in the oceans.
2)
In a study of dental problem, the following data were obtained.

Ages 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80

No. of patients 5 13 25 14 30 35 43 50

Represent the above data by a frequency polygon
3)
Draw a pie chart for the given table.

Continent Asia Africa North America South America Europe Australia Antarctica

Area 30 % 20 % 16 % 12 % 7 % 6 % 9 %

4)

Form a continuous frequency distribution table and draw histogram from the following data.

Age (in years)	No. of persons
Under 5	1
Under 10	12
Under 20	26
Under 25	27
Under 30	35
Under 35	38
Under 40	45
Under 45	48
Under 50	53

5)
Draw a histogram for the following data.

Mid Value (x) 15 25 35 45 55 65 75

Frequency (f) 12 24 30 18 26 10 8

8th Standard English Medium Maths Subject Term 3 Statistics Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
The continuous series of

10 -20

24-34

38-48

52-62
2)
Income from various sources for Government of India from a rupee is given below. Draw a pie chart.

Source Corporation tax Income tax Customs Excise duties Service Tax Others

Income (in paise) 19 16 9 14 10 32
3)
Monthly expenditure of Kumaran’s family is given below. Draw a suitable Pie chart.

Particulars Food Education Rent Transport Miscellaneous

Expenses (in %) 50 % 20 % 15 % 5 % 10 %

Also
1. Find the amount spent for education if Kumaran spends Rs.6000 for Rent.
2. What is the total salary of Kumaran?
3. How much did he spend more for food than education
4)
Which of the following data can be represented in a histogram?
(i) The number of mountain climbers in the age group 20 to 60.
(ii) Production of cycles in different years.
(iii) The number of students in each class of a school.
(iv) The number votes polled from 7 am to 6 pm in an election.
(v) The wickets fallen from 1 over to 50th over in a one day cricket match.
5)
In a village, there are 570 people who have cell phones. An NGO survey their cell phone usage.
Based on this survey a histogram is drawn. Answer the following questions.
(i) How many people use the cell phone for less than 3 hours?
(ii) How many of them use the cell phone for more than 5 hours?
(iii) Are people using cell phone for less than1 hour?

8th Standard English Medium Maths Subject Term 3 Statistics Book Back 1 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
In a class interval the upper limit of one class is the lower limit of the other class. This is ________series.
2)
The graphical representation of ungrouped data is ________
3)
Histogram is a graph of a ________ frequency distribution.
4)
A ________ is a line graph for the graphical representation of the continuous frequency distribution.
5)
The graphical representation of grouped data is________

8th Standard English Medium Maths Subject Term 3 Statistics Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Data is a collection of________
2)
The number of times an observation occurs in the given data is called______
3)
The difference between the largest value and the smallest value of the given data is_______
4)
The data that can take values between a certain range is called________
5)
Inclusive series is a ________series.

8th Standard English Medium Maths Subject Term 3 Geometry Book Back 5 Mark Questions with Solution - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Construct a rhombus ROSE with RO = 5 cm and RS = 8 cm. Also find its area.
2)
Construct a rhombus NEST with NS = 9 cm and ET = 8 cm. Also find its area
3)
Construct a rectangle BEAN with BE = 5 cm and BN = 3 cm. Also find its area
4)
Construct a rectangle LIME with LI = 6 cm and IE = 7 cm. Also find its area.
5)
Construct a square RAMP of a diagonal 8 cm. Also find its area.

8th Standard English Medium Maths Subject Term 3 Geometry Book Back 3 Mark Questions with Solution - by Question Bank Software - Jun 15, 2021 - View & Read

1)
In the figure, ABC is a triangle and AM is one of its medians. If BM = 3.5 cm, find the length of the side BC.
2)
In the figure, ABC is a triangle and CD is one of its medians.
If AD = 9x − 13 and BD = 4x + 2, find the length of the side AB.
3)
In the figure G is the centroid of the triangle XYZ.
(i) If GL = 2.5 cm, find the length XL.
(ii) If YM = 9.3 cm, find the length GM.
4)
XYZ is a triangle and G is its centroid. If GP = 2.5 cm, GY = 6 cm and ZR = 12 cm, find XP, QY and GR.
5)
In ΔABC, S is the circumcentre, BC = 72 cm and DS = 15 cm. Find the radius of its circumcircle.

8th Standard English Medium Maths Subject Term 3 Geometry Book Back 2 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
If I is the incentre of ΔXYZ, ∠IYZ = 30° and ∠IZY = 40° , find ∠YXZ .
2)
In ΔDEF, DN, EO, FM are medians and point P is the centroid. Find the following

(i) IF DE = 44, then DM = ?
(ii) IF PD = 12, then PN = ?
(iii) If DO = 8, then FD = ?
(iv) IF OE = 36 then EP = ?
3)
Construct the following rhombuse with the given measurement and also find their area
MARK, AK =7.5 cm and ∠A = 80°
4)
Construct the following rectangle with the given measurement and also find their area
SAND, SA =5.6 cm and SN = 4.4 cm
5)
Construct the following square with the given measurement and also find their area
REST, ET = 8 cm

8th Standard English Medium Maths Subject Term 3 Geometry Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
a) Where does the circumcentre lie in the case of
(i) An acute-angled triangle.
(ii) An obtuse-angled triangle.
(iii) A right-angled triangle.
b) Where does the orthocentre lie in the case of
(i) An acute-angled triangle.
(ii) An obtuse-angled triangle.
(iii) A right-angled triangle
2)
Fill in the blanks:

In the triangle ABC,
(i) The angle bisector is _______
(ii) The altitude is _______
(iii) The median is ______
3)
In right triangle ABC, what is the length of altitude drawn from the vertex A to BC?
4)
In triangle XYZ, YM is the angle bisector of ㄥY and ㄥY= is 100^o
Find ㄥXYM and ㄥZYM.
5)
In triangle PQR, PS is a median and QS = 3.5 cm, then find QR?

8th Standard English Medium Maths Subject Term 3 Life Mathematics Book Back 3 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
If 81 students can do a painting on a wall of length 448 m in 56 days. How many students can do the painting on a similar type of wall of length 160 m in 27 days?
2)
A and B together can do a piece of work in 16 days and A alone can do it in 48 days. How long will B done take to complete the work?
3)
A works 3 times as fast as B and is able to complete a task in 24 days less than the days taken by B. Find the time in which they can complete the work together.
4)
P and Q can do a piece of work in 20 days and 30 days respectively. They started the work together and Q left after some days of work and P finished the remaining work in 5 days. After how many days from the start did Q leave?
5)
A and B can do a piece of work in 12 days and 9 days respectively. They work on alternate days starting with A on the first day. In how many days will the work be completed?

8th Standard English Medium Maths Subject Term 3 Life Mathematics Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
If a company pays Rs. 6 lakh for 15 workers for 20 days, what would it pay for 5 workers for 12 days?
2)
A and B together can do a piece of work in 16 days and A alone can do it in 48 days. How long will B done take to complete the work?
3)
A works 3 times as fast as B and is able to complete a task in 24 days less than the days taken by B. Find the time in which they can complete the work together.
4)
A and B can do a piece of work in 12 days and 9 days respectively. They work on alternate days starting with A on the first day. In how many days will the work be completed?
5)
X, Y and Z can do a piece of job in 4, 6 and 10 days respectively. If X,Y, and Z work together to complete, then find their separate shares if they will be paid Rs 3100 for completing the job.

8th Standard English Medium Maths Subject Term 3 Life Mathematics Book Back 2 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Carpenter A takes 15 minutes to fit the parts of a chair while Carpenter B takes 3 minutes more than A to do the same work. Working together, how long will it take for them to fit the parts for 22 chairs?
2)
If 32 men working 12 hours a day can do a work in 15 days, how many men working 10 hours a day can do double that work in 24 days?
3)
Amutha can weave a saree in 18 days. Anjali is twice as good a weaver as Amutha. If both of them weave together, in how many days can they complete weaving the saree?
4)
A, B and C can complete a work in 5 days. If A and C can complete the same work in \(7\cfrac { 1 }{ 2 } \) days and A alone in 15 days, then in how many days can B and C fi nish the work?
5)
X alone can do a piece of work in 6 days and Y alone in 8 days. X and Y undertook the work for Rs 4800. With the help of Z, they completed the work in 3 days. How much is Z’s share?

8th Standard English Medium Maths Subject Term 3 Life Mathematics Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
210 men working 12 hours a day can finish a job in 18 days. How many men are required to finish the job in 20 days working 14 hours a day?
2)
A cement factory makes 7000 cement bags in 12 days with the help of 36 machines. How many bags can be made in 18 days using 24 machines?
3)
A soap factory produces 9600 soaps in 6 days working 15 hours a day. In how many days will it produce 14400 soaps working 3 hours more a day?
4)
If 6 container lorries can transport 135 tonnes of goods in 5 days, how many more lorries are required to transport 180 tonnes of goods in 4 days?
5)
A can do a piece of work in 12 hours, B and C can do it 3 hours whereas A and C can do it in 6 hours. How long will B alone take to do the same work?

8th Standard English Medium Maths Subject Term 3 Rational Numbers Book Back 5 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Simplify;\(\sqrt { \cfrac { 98 }{ 162 } } \)
2)
Simplify and write the answer in exponential form:
\(\left( -3 \right) ^{ 4 }\times \left( \cfrac { 5 }{ 3 } \right) ^{ 4 }\)
3)
Find x so that (-7)^{x + 2}X( - 7) ⁵= (-7) ¹⁰
4)
Combine the scientific notations:(3.7 x 10^-5)(2 x 10^-3)
5)
Write the following scientific notations in standard form: Lights travels at 1.86 \(\times\)10⁵miles per second.

8th Standard English Medium Maths Subject Term 3 Rational Numbers Book Back 5 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Find the value of \(\sqrt { 42.25 } \)
2)
Simplify:\(\sqrt { 12 } \times \sqrt { 3 } \)
3)
The area of a square field is 3136 m². Find its perimeter
4)
Simplify: (−2)⁵ x (−2)⁻³
5)
Combine the scientific notations:(3.7 x 10^-5)(2 x 10^-3)

8th Standard English Medium Maths Subject Term 3 Rational Numbers Book Back 3 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Find the least number by which 250 is to be multiplied (or) divided so that the resulting number is a perfect square. Also, find the square root in that case
2)
Find the value of \(\sqrt { 256 } \)
3)
Is 400 a perfect cube?
4)
Find the cube root of 27000.
5)
Evaluate:\(\sqrt [ 3 ]{ \cfrac { 9261 }{ 8000 } } \)

8th Standard English Medium Maths Subject Term 3 Rational Numbers Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Find the sum of the odd natural numbers 1 + 3 + 5 + 7 + ... ... ... + 99.
2)
Find the square of 345 using diagonal method.
3)
Examine if (8, 15, 17) is a Pythagorean triplet
4)
Find the square root of 64 by repeated subtraction method.
5)
Find the square root of 324 by prime factorisation

8th Standard English Medium Maths Subject Term 3 Rational Numbers Book Back 2 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Find the smallest number by which 200 should be multiplied to make it a perfect cube.
2)
Evaluate:\(\left( \cfrac { 1 }{ 2 } \right) ^{ -5 }\)
3)
Evaluate : (-3)
4)
Evaluate:\(\left( { 2 }^{ -1 }\times { 3 }^{ -1 } \right) \div { 6 }^{ -2 }\)
5)
Evaluate :\(\left(2^{-1}+3^{-1}\right) \div 6^{-1}\)

8th Standard English Medium Maths Subject Term 3 Rational Numbers Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Express
(i) 15² and
(ii) 19² as the sum of two consecutive positive integers.
2)
Write
(i) 10² and
(ii) 112 as the sum of consecutive odd natural numbers
3)
Find a Pythagorean triplet whose
(i) largest member is 65
(ii) smallest member is 10
4)
Find the square root of the following by repeated subtraction method.
(i) 144
(ii) 256
(iii) 784
5)
Find the smallest number by which 10985 should be divided so that the quotient is a perfect cube.

8th Standard English Medium Maths Subject Term 3 Rational Numbers Book Back 1 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
By what number should (-4)^-1 be multiplied so that the product becomes 10^-1?
2)
0.0000000002020 in scientific form is
3)
(-2)^-3x (- 2)^-2 is
4)
Which is not correct?
5)
If \(\left( \cfrac { p }{ q } \right) ^{ 1-3x }=\left( \cfrac { q }{ p } \right) ^{ \frac { 1 }{ 2 } }\), then x is __________

8th Standard English Medium Maths Subject Term 3 Rational Numbers Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
What will be the ones digit in the squares of the following numbers?
2)
Study the given numbers and justify why each of them obviously cannot be a perfect square.
3)
\(\\ \sqrt { 48 } \) is approximately equal to
4)
\(\sqrt { 128 } -\sqrt { 98 } +\sqrt { 18 } =\)
5)
\(\sqrt { 22+\sqrt { 7 } +\sqrt { 4 } } \) =

8th Standard English Medium Maths Subject Term 2 Information Processing Book Back 2 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
A message like “Good Morning” written in reverse would instead be “Doog Gninrom”. In the same way decode the sentence given below:
“Ot dnatsrednu taht scitamehtam nac eb decneirepxe erehwreve ni erutan dna laer efil.”
2)
Decode the given Pigpen Cipher text and compare your answer to get the Activity 3 result.

The room number in which the treasure took place
\(\sqcap \sqcup \)
II. Place of the treasure:-

III. The name of the treasure:-
3)
In a library, 385 Math books, 297 Science books and 143 Tamil books are bundled equally in numbers. What is the maximum numbers of books possible in a bundle, for all types of books? (Use repeated division method)
4)
Using repeated division method find HCF of the following:
6765 and 610
5)
Do the given problems by repeated subtraction method and verify the result.

8th Standard English Medium Maths Subject Term 2 Information Processing Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
In the given graph sheet draw and colour how the Fibonacci number pattern makes a spiral in the Golden Rectangle.
2)
Using repeated subtracting method find HCF of the following:
42 and 70
3)
Do the given problems by repeated subtraction method and verify the result.
4)
On a school trip, 56 girls and 98 boys went to Kanyakumari. They were divided into as many groups as possible so that there were equal numbers of girls and boys in each group. find the largest group possible? (To find the HCF using repeated division method)
5)
Kalai wants to cut identical squares as big as she can, from a piece of paper measuring 168 mm and by 196 mm. What is the length of the side of the biggest square? (To find HCF using repeated subtraction method)

8th Standard English Medium Maths Subject Term 2 Information Processing Book Back 1 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
There are four groups of letters in each set. Three of these sets are a like in some way while one is different. Find the one which is different.
2)
A group of letters are given. A numerical code has been given to each letter. These letters have to be unscrambled into a meaningful word. Find out the code for the word so formed from the 4 answers given.
L I N C P E
1 2 3 4 5 6
3)
Find the correct answer from the four alternatives given.
In a certain code, ‘M E D I C I N E’ is coded as ‘E O J D J E F M’, then how is ‘C O M P U T E R’ written in the same code?
4)
Find the correct answer from the four alternatives given
If the word ‘P H O N E’ is coded as ‘S K R Q H’, how will ‘R A D I O’ be coded?
5)
Praveen recently got the registration number for his new two-wheeler. Here, the number is given in the form of mirror-image. Encode the image and find the correct registration number of praveen’s two-wheeler.

8th Standard English Medium Maths Subject Term 2 Information Processing Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
What is the eleventh Fibonacci number?
2)
If F(n) is a Fibonacci number and n = 8, which of the following is true?
3)
Every 3rd number of the Fibonacci sequence is a multiple of _______
4)
Every _______ number of the Fibonacci sequence is a multiple of 8
5)
The difference between the 18^th and 17^th Fibonacci number is

8th Standard English Medium Maths Subject Term 2 Geometry Book Back 3 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Find LM, MN, LN and also the area of Δ LON.
2)
Δ ABC is equilateral and CD of the right triangle BCD is 8 cm. Find the side of the equilateral Δ ABC and also BD.
3)
From the figure, find x and y and verify Δ ABC is a right angled triangle.
4)
Construct a parallelogram CALF with CA = 7 cm, CF = 6 cm and AF = 10 cm. Also find its area.
5)
Construct a parallelogram BEAR with BE = 7 cm, BA = 7.5 cm and ㄥBEA = 80⁰. Also find its area.

8th Standard English Medium Maths Subject Term 2 Geometry Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
In the figure, AB ⊥ AC
a) What type of Δ is ABC?
b) What are AB and AC of the Δ ABC?
c) What is CB called as?
d) If AC = AB then, what is the measure of ㄥB and ㄥC?
2)
Can a right triangle have sides that measure 5cm, 12cm and 13cm?
3)
A 20- feet ladder leans against a wall at height of 16 feet from the ground. How far is the base of the ladder from the wall?
4)
A junction where two roads intersect at right angles is as shown in the figure. Find AC if AB = 8 m and BC = 15 m.
5)
Find the area of a rectangular plot of land shown in the figure.

8th Standard English Medium Maths Subject Term 2 Geometry Book Back 2 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
In the figure, find MT and AH.
2)
Mayan travelled 28 km due north and then 21 km due east. What is the least distance that he could have travelled from his starting point?
3)
If ∆ APK is an isosceles right angled triangle, right angled at K. Prove that AP² = 2AK².
4)
The diagonals of the rhombus is 12 cm and 16 cm. Find its perimeter. (Hint: the diagonals of rhombus bisect each other at right angles).
5)
I. Construct the following trapeziums with the given measures and also find their area.
1. AIMS with \(\overset { \_ \_ }{ AI } \) || \(\overset { \_ \_ }{ SM } \), AI = 6 cm, IM = 5 cm, AM = 9 cm and MS = 6.5 cm.
2. CUTE with \(\overset { \_ \_ }{ CD } \) || \(\overset { \_ \_ }{ ET } \), CU = 7 cm, ㄥUCE = 80⁰ CE = 6 cm and TE = 5 cm..
3. ARMY with \(\overset { \_ \_ }{ AR } \) || \(\overset { \_ \_ }{ YM } \), AR = 7 cm, RM = 6.5 cm ㄥRAY = 100⁰ and ㄥARM = 60⁰
4. CITY with \(\overset { \_ \_ }{ CI } \) || \(\overset { \_ \_ }{ YT } \), CI = 7 cm, IT = 5.5 cm, TY = 4 cm and YC = 6 cm.

8th Standard English Medium Maths Subject Term 2 Geometry Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Check whether given sides are the sides of right-angled triangles, using Pythagoras theorem.
(i) 8,15,17
(ii) 12,13,15
(iii) 30, 40, 50
(iv) 9, 40, 41
(v) 24, 45, 51
2)
Find the unknown side in the following triangles.
3)
In the figure, find PR and QR.
4)
The length and breadth of the screen of an LED-TV are 24 inches and 18 inches. Find the length of its diagonal.
5)
Find the distance between the helicopter and the ship.

8th Standard English Medium Maths Subject Term 2 Geometry Book Back 1 Mark Questions with Solution - by Question Bank Software - Jun 15, 2021 - View & Read

1)
If Δ GUT is isosceles and right angled, then ㄥTUG is ________.
2)
The hypotenuse of a right angled triangle of sides 12cm and 16cm is __________.
3)
The area of a rectangle of length 21 cm and diagonal 29 cm is __________cm².
4)
If the square of the hypotenuse of an isosceles right triangle is 50 cm², the length of each side is ____________.
5)
The sides of a right angled triangle are in the ratio 5: 12: 13 and its perimeter is 120 units then, the sides are ______________.

8th Standard English Medium Maths Subject Term 2 Algebra Book Back 5 Mark Questions with Solution - by Question Bank Software - Jun 15, 2021 - View & Read

1)
A bus is carrying 56 passengers with some people having Rs.8 tickets and the remaining having Rs.10 tickets. If the total money received from these passengers is Rs.500, find the number of passengers with each type of tickets.
2)
The length of a rectangular field exceeds its breadth by 9 metres. If the perimeter of the field is 154m, find the length and breadth of the field.
3)
There is a wooden piece of length 2m. A carpenter wants to cut it into two pieces such that the first piece is 40 cm smaller than twice the other piece. What is the length of the smaller piece?
4)
mother is five times as old as her daughter. After 2 years, the mother will be four times as old as her daughter. What are their present ages?
5)
From home, Rajan rides on his motorbike at 35 km/hr and reaches his office 5 minutes late. If he had ridden at 50 km/hr, he would have reached his office 4 minutes earlier. How far is his office from his home?

8th Standard English Medium Maths Subject Term 2 Algebra Book Back 3 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
The sum of 4 times a number and 18 is 28.
2)
Solve the equation: x − 7 = 6
3)
Solve \(\frac { 4y }{ 3 } -7=\frac { 2 }{ 5 } y\)
4)
Draw the graph of y = 5 x

x -3 -1 0 2 3

y -15 -5 0 10 15
5)
Relation between Quantity and Cost
The following table gives the quantity of milk and its cost.

Quantity of milk 5 10 15 20

Cost of milk 150 300 450 600

Plot the graph.

8th Standard English Medium Maths Subject Term 2 Algebra Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
The sum of 4 times a number and 18 is 28.
2)
Solve the equation: x − 7 = 6
3)
Solve the equation: 3x = 51
4)
Solve 2x + 5 = 9
5)
Draw the graph of y = 5 x

x -3 -1 0 2 3

y -15 -5 0 10 15

8th Standard English Medium Maths Subject Term 2 Algebra Book Back 2 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Find x and p: (i) \(\frac { 2x }{ 3 } \) - 4 = \(\frac { 10 }{ 3 } \) (ii) y+\(\frac { 1 }{ 6 } \) - 3y = \(\frac { 2 }{ 3 } \) (iii) \(\frac { 1 }{ 3 } -\frac { 1x }{ 3 } =\frac { 7x }{ 12 } +\frac { 5 }{ 4 } \)
2)
Find x: (i) – 3(4x + 9) = 21 (ii) 20 – 2 ( 5 – p) = 8 (iii) (7x – 5) – 4(2 + 5x) = 10(2 – x)
3)
Find x and m: (i)\(\frac { 3x-2 }{ 4 } =\frac { (x-3) }{ 5 } =-1\)
(ii) \(\frac { m+9 }{ 3m+15 } =\frac { 5 }{ 3 } \)
4)
One number is seven times another. If their difference is 18, find the numbers.
5)
The length of a rectangle is \(\frac { 1 }{ 3 } \) of its breadth. If its perimeter is 64m, then find the length and breadth of the rectangle.

8th Standard English Medium Maths Subject Term 2 Algebra Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Find x and p: (i) \(\frac { 2x }{ 3 } \) - 4 = \(\frac { 10 }{ 3 } \) (ii) y+\(\frac { 1 }{ 6 } \) - 3y = \(\frac { 2 }{ 3 } \) (iii) \(\frac { 1 }{ 3 } -\frac { 1x }{ 3 } =\frac { 7x }{ 12 } +\frac { 5 }{ 4 } \)
2)
Find x: (i) – 3(4x + 9) = 21 (ii) 20 – 2 ( 5 – p) = 8 (iii) (7x – 5) – 4(2 + 5x) = 10(2 – x)
3)
Find x and m: (i)\(\frac { 3x-2 }{ 4 } =\frac { (x-3) }{ 5 } =-1\)
(ii) \(\frac { m+9 }{ 3m+15 } =\frac { 5 }{ 3 } \)
4)
One number is seven times another. If their difference is 18, find the numbers.
5)
The sum of three consecutive odd numbers is 75. Which is the largest among them?

8th Standard English Medium Maths Subject Term 2 Life Mathematics Book Back 5 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
The cost price of 16 boxes of strawberries is equal to the selling price of 20 boxes of strawberries. Find the gain or loss percentage.
2)
Find the single discount which is equivalent to two successive discounts of 25% and 20% given on an article.
3)
A woman bought some eggs at the rate of 4 eggs for Rs.18 and sold them at the rate of 5 eggs for Rs. 24. She gained Rs. 90 in selling all the eggs. How many eggs did she buy?
4)
A water heater is sold by a trader for Rs. 10502 including GST at 18% . Find the marked price of the water heater and GST.
5)
A family went to a hotel and spent Rs. 350 for the food and paid extra 5% as GST. Calculate the CGST and SGST.

8th Standard English Medium Maths Subject Term 2 Life Mathematics Book Back 5 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
If the selling price of a LED TV is equal to \(\frac{5}{4}\) of its cost price, then find the gain / profit percentage.
2)
Ranjith bought a washing machine for Rs. 16150 and paid Rs. 1350 for its transportation. Then, he sold it for Rs. 19250. Find his gain or loss percentage.
3)
A pre-owned car was bought for Rs. 240000. On repairs Rs.15000 was spent, Rs. 8500 was paid for its insurance. Then, it was sold for Rs. 258230. What is the gain or loss percentage?
4)
The cost price of 16 boxes of strawberries is equal to the selling price of 20 boxes of strawberries. Find the gain or loss percentage.

8th Standard English Medium Maths Subject Term 2 Life Mathematics Book Back 3 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
A mat of length 180 m is made by 15 women in 12 days. How long will it take for 32 women to make a mat of length 512 m?
2)
If 48 men working 7 hours a day can do a work in 24 days, then in how many days will 28 men working 8 hours a day can complete the same work?
3)
If 15 men take 40 days to complete a work, how long will it take if 15 more men join them to complete the same work?
4)
A and B together can do a piece of work in 16 days and A alone can do it in 48 days. How long will B done take to complete the work?
5)
X, Y and Z can do a piece of job in 4, 6 and 10 days respectively. If X,Y, and Z work together to complete, then find their separate shares if they will be paid Rs 3100 for completing the job.

8th Standard English Medium Maths Subject Term 2 Life Mathematics Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
900 boys and 600 girls appeared in an examination of which 70% of the boys and 85%of the girls passed out in the examination. Find the total percentage of students who did not pass.
2)
If x % of 600 is 450 then, find the value of x.
3)
When a number is decreased by 25% it becomes 120. Find the number.
4)
If the price of Orid dhall after 20% increase is Rs. 96 per kg, find the original price of Orid dhall per kg.
5)
In a leadership election between two persons A and B, A wins by a margin of 192 votes. If A gets 58% of the total votes, find the total votes polled.

8th Standard English Medium Maths Subject Term 2 Life Mathematics Book Back 2 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
If selling an article for Rs. 820 causes 10% loss on the selling price, find its cost price
2)
If the profit earned on selling an article for Rs.810 is the same as loss on selling it for Rs.530, then find the cost price of the article.
3)
By selling a speaker for Rs. 768, a man loses 20%. In order to gain 20% how much should he sell the speaker?
4)
A branded AC has a marked price of Rs. 37250. There are 2 options given for the customer.
(i) Selling Price is Rs. 38000 along with attractive gifts worth Rs. 3000 (or)
(ii) Discount of 8% but no free gifts. Which offer is better?
5)
Th e present height of a tree is 847 cm. Find its height two years ago, if it increases at 10 %p.a.

8th Standard English Medium Maths Subject Term 2 Life Mathematics Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Rewrite each underlined part using percentage language.
(i) One half of the cake is distributed to the children.
(ii) Aparna scored 7.5 points out of 10 in a competition.
(iii) The statue was made of pure silver.
(iv) 48 out of 50 students participated in sports.
(v) Only 2 persons out of 3 will be selected in the interview.
2)
48 is 32% of what number?.
3)
A Welfare Association has a sports club where 30% of the members play cricket, 28% play volleyball, 22% play badminton and the rest play indoor games. If 30 member play indoor games.
(i) How many members are there in the sports club?
(ii) How many play cricket, volleyball and badminton?
4)
If a car is sold for Rs. 200000 from its original price of Rs. 300000, find the percentage for decrease in the value of the car.
5)
A number when increased by 18% gives 236. Find the number.

8th Standard English Medium Maths Subject Term 2 Life Mathematics Book Back 1 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
The number of conversion periods, if the interest on a principal is compounded every two months is___________.
2)
The time taken for Rs.4400 to become Rs.4851 at 10%, compounded half yearly is _______.
3)
The cost of a machine is Rs.18000 and it depreciates at \(16 \frac{2}{3} \%\) annually. Its value after 2 years will be___________.
4)
The sum which amounts to Rs.2662 at 10% p.a in 3 years compounded yearly is_______.
5)
The difference between compound and simple interest on a certain sum of money for 2 years at 2% p.a is Rs 1. The sum of money is___________.

8th Standard English Medium Maths Subject Term 2 Life Mathematics Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
12% of 250 litres is the same as ________of 150 litres.
2)
If three candidates A, B and C is a 3 school election got 153, 245 and 102 votes respectively, the percentage of votes for the winner is___________.
3)
15% of 25% of 10000 =___________.
4)
When 60 is subtracted from 60% of a number to give 60, the number is
5)
If 48% of 48 = 64% of x , then x =

8th Standard English Medium Maths Subject Term 1 Information Processing Book Back 3 Mark Questions with Solution - by Question Bank Software - Jun 15, 2021 - View & Read

1)
How many possible outcomes are there in tossing a coin
2)
What are the possible outcomes if a fair die is rolled?
3)
The teacher has trained 11 boys and 6 girls and wants to select one of them to participate in the Inter School Quiz competition. In how many ways can the teacher make this selection?
4)
In class VIII, a math club has four members M, A, T, and H. Find the number of different ways, the club can elect
(i) a leader,
(ii) a leader and an assistant leader.
5)
Madhan wants to a buy a new car. The following choices are available for him.
1) There are 2 types of cars as shown in the Figure
2) There are 5 colours available in each type as shown in Figure
3) There are 3 models available in each colour
(i) GL (standard model)
(ii) SS (sports model)
(iii) SL (luxury model)

(i) In how many different ways can Madhan buy any one of the new cars?
(ii) If the white colour is not available in Type 2, then in how many ways can Madan buy a new car among the given options?

8th Standard English Medium Maths Subject Term 1 Information Processing Book Back 2 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
The given spinner is spun twice and the two numbers got are used to form a 2 digit number. How many different 2 digits numbers are possible?
2)
Colour the following pattern with as few colours as possible but make sure that no two adjacent sections are of the same colour.
3)
Use the numbers given in the figure to form a 3 x 3 magic square.
4)
Find any four SETs among these set of cards.
5)
Think why this graph colouring is invalid?

8th Standard English Medium Maths Subject Term 1 Information Processing Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
You are going to have an ice cream or a cake. There are three flavors (chocolate, strawberry, vanilla) in ice creams and two flavors (orange or red velvet) in cakes. In how many possible ways can you choose an ice cream or the cake?
2)
In how many ways, can the teacher choose 3 students in all, one each from 10 students in VI std, 15 students in VII std and 20 students in VIII std to go to an excursion?
3)
If you have 2 school bags and 3 water bottles then, in how many different ways can you choose each one of them, while going to school ?
4)
Colour the following patterns with as few colours as possible but make sure that no two adjacent sections are of the same colour.
5)
Ramya wants to paint a pattern in her living room wall with a minimum budget. Help her to colour the pattern with 2 colours but make sure that no two adjacent boxes are the same colour. The pattern is shown in the picture.

8th Standard English Medium Maths Subject Term 1 Geometry Book Back 5 Mark Questions with Solution - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Construct a quadrilateral DEAR with DE = 6 cm, EA = 5 cm, AR = 5.5cm, RD = 5.2 cm and DA = 10 cm. Also find its area.
2)
Construct a quadrilateral NICE with NI = 4.5 cm, IC = 4.3 cm, NE = 3.5 cm, NC = 5.5 cm and IE = 5 cm. Also find its area
3)
Construct a quadrilateral MATH with MA = 4 cm, AT = 3.6 cm, TH = 4.5 cm, MH = 5 cm and ∠A = 85°. Also find its area.
4)
Construct a quadrilateral ABCD with AB = 7 cm, AD = 5 cm, CD = 5 cm, ∠BAC = 50° and ∠ABC = 60°. Also find its area.
5)
Construct a quadrilateral PQRS with PQ = QR = 5 cm, ∠QPR = 50^o, ∠PRS = 40^o and ∠RPS = 80^o Also find its area.

8th Standard English Medium Maths Subject Term 1 Geometry Book Back 3 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
(Illustrating AA Similarity)
In the given Fir, if ∠1 ≡ ∠3 and ∠2 ≡∠4 then, prove that ΔBIG ～ ΔFAT . Also find FA.
2)
(Illustrating SSS and SAS Congruence)
If ∠E =∠S and G is the midpoint of ES, prove that Δ GET ≡ Δ GST.
3)
(Illustrating SAS Congruence)
If CW and CT trisect OA and CO ≡ CA, prove that Δ COW ≡ Δ CAT
4)
(Illustrating RHS Congruence)
If TAP is an isosceles triangle with TA = TP and ∠TSA = 90°.
Is AS = PS? Why?
5)
In ΔPAT, the bisector of ∠P, meets AT at S. If ∠APT = 70^o and ∠ASP = 100^o, find ∠A and ∠T.

8th Standard English Medium Maths Subject Term 1 Geometry Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
If PQ || RS and ∠ONR = 30^o find ∠MON and hence ∠MOX .
2)
Find the unknowns in the following figures
3)
In the Fig if ΔPQR ～ ΔXYZ, find a and b.
4)
In Fig, if ΔPEN ～ ΔPAD, then find x and y.
5)
(Illustrating RHS similarity)
The height of a man and his shadow form a triangle similar to that formed by a nearby tree and its shadow. What is the height of the tree?

8th Standard English Medium Maths Subject Term 1 Geometry Book Back 2 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
In the given figure, D is the midpoint of OE and ∠CDE = 90°. Prove that ΔODC ≡ ΔEDC
2)
In the figure, ∠TMA ≡ ∠IAM and ∠TAM ≡ ∠IMA . P is the midpoint of MI and N is the midpoint of AI. Prove that ΔPIN～ΔATM.
3)
Construct the following quadrilaterals with the given measurements and also find their area.
MIND, MI = 3.6 cm, ND = 4 cm, MD = 4 cm, ∠M = 50° and ∠D = 100°.
4)
Construct the following quadrilaterals with the given measurements and also find their area.
WORK, WO = 9 cm, OR = 6 cm, RK = 5 cm, ∠O = 100° and ∠R = 60°.
5)
Fill in the blanks with the correct term from the given list.
(in proportion, similar, corresponding, congruent shape, area, equal)
(i) Corresponding sides of similar triangles are _______.
(ii) Similar triangles have the same _________ but not necessarily the same size.
(iii) In similar triangles, ______ sides are opposite to equal angles.
(iv) The symbol ≡ is used to represent _______ triangles.
(v) The symbol ～ is used to represent ________ triangles

8th Standard English Medium Maths Subject Term 1 Geometry Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
From the given figure, prove that ΔABC～ΔDEF
2)
In the given fi gure prove that ΔGUM ～ ΔBOX
3)
In the given figure, if ΔEAT～ΔBUN, find the measure of all angles.
4)
In the given figure, UB || AT and CU ≡ CB Prove that ΔCUB～ΔCAT and hence ΔCAT is isosceles
5)
In the given fi gure, if SW ≡ SE and ∠NWO≡∠NEO . then, prove that NS bisects WE and ∠NOW = 90°

8th Standard English Medium Maths Subject Term 1 Geometry Book Back 1 Mark Questions with Solution - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Two similar triangles will always have ________angles
2)
If in triangles PQR and XYZ, \(\frac{PQ}{XY}=\frac{QR}{ZX}\) then they will be similar if
3)
A flag pole 15 m high casts a shadow of 3 m at 10 a.m. The shadow cast by a building at the same time is 18.6 m. The height of the building is
4)
If ΔABC～ΔPQR in which ∠A = 53^o and ∠Q = 77^o, then R is
5)
In the figure, which of the following statements is true?

8th Standard English Medium Maths Subject Term 1 Algebra Book Back 5 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Factorise 49x²- 8xxy + 36y²
2)
Factorise : 49x²- 64y²
3)
Factoris 7c²+ 2c - 5
4)
Factorize: 8p³+ q³
5)
Factorise: 81x³-3y³

8th Standard English Medium Maths Subject Term 1 Algebra Book Back 5 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Velu pastes ‘ 4xy ’ pictures in one page of his scrap book. How many pages will he need to paste 100x²y³pictures? (x, y are positive integers).
2)
Divide : (5y³− 25y²+ 8y) by 5y
3)
Sethu travelled (4x²+3xy²+5x)km in ‘2x’ hrs. Find his speed of travel.
4)
Factorise :2m³-5m²+9m
5)
Factorise x²+ yz + xy + xz

8th Standard English Medium Maths Subject Term 1 Algebra Book Back 3 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
If Guru wants to multiply the expressions (2x+3y+50) and 3xy , what is the resultant expression?
2)
Find the value of (3a + 4c)² by using (a+b)² identity.
3)
Expand y²- 16 using a²− b² identity
4)
Find the value of (103)³
5)
Expand (x + 4)³

8th Standard English Medium Maths Subject Term 1 Algebra Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
If the side of a square carpet is 3x²metre, then find its area
2)
If the length and breadth of a rectangular painting are 4xy³ and 3x²y. Find its area.
3)
Find the product of 2x²y², 3y²z and –z²x³
4)
Ram deposited ‘x’ number of Rs. 2000 notes, ‘y’ number of Rs.500 notes, ‘z’ number of Rs.100 notes in a bank and Velan deposited ‘3xy’ times of amount of what Ram had deposited. How much amount did Velan deposit in the bank?
5)
Multiply (2x + 5y) and (3x − 4y)

8th Standard English Medium Maths Subject Term 1 Algebra Book Back 2 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Expand (3m + 5)²
2)
Factorise the following by taking out the common factor (ax + ay) + (bx + by)
3)
Factorise the following by taking out the common factor a³− 3a²+ a −3
4)
Factorise :(7y²- 19y- 6)
5)
Pick out the like terms from the following.

8th Standard English Medium Maths Subject Term 1 Algebra Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Multiply a monomial by a monomial
−3x, 7y
2)
Multiply a monomial by a monomial
a³, -4a²b
3)
Expand 5x(2y− 3)
4)
Find the product of (2x + 3)(2x − 4)
5)
Find the missing term 6xy x _________= −12x³y

8th Standard English Medium Maths Subject Term 1 Algebra Book Back 1 Mark Questions with Solution - by Question Bank Software - Jun 15, 2021 - View & Read

1)
The product of 7p³ and (2p²)² is
2)
The missing terms in the product - 3m3n x 9(_) = ___________m⁴n³ are
3)
If the area of a square is 36x⁴y²t hen, its side is______
4)
If the area of a rectangle is 48m²n³ and whose length is 82mn² then, its breadth is______
5)
If the area of a rectangular land is(a²- b²)− sq.units whose breadth is (a - b) then, its length is__________

8th Standard English Medium Maths Subject Term 1 Measurements Book Back 5 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Find the perimeter and area of the given Figure. \(\left( \pi =\frac { 22 }{ 7 } \right) \)
2)
A 3- fold invitation card is given with measures as in the Figure. Find its area.
3)
Seenu wants to buy a floor mat for his kitchen at home as given in the figure. If the cost of the mat is Rs. 20 per square foot, what will be the cost of the entire mat?
4)
Find the area of the shaded region in the square of side 10 cm as given in the figure. \(\left(\pi=\frac{22}{7}\right)\)
5)
Find the area of the irregular polygon field whose measures are as given in the figure.

8th Standard English Medium Maths Subject Term 1 Measurements Book Back 5 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Find the perimeter and area of the given Figure. \(\left( \pi =\frac { 22 }{ 7 } \right) \)
2)
Find the area of the blue shaded and the grey shaded part of the given Figure. (π = 3.14)
3)
Thiyagu has fixed a door for the entrance of his house which is in the shape of a semicircle over a rectangle. The total height and width of the door is 9 feet and 3.5 feet respectively. Find the area of the door. \(\left( \pi =\frac { 22 }{ 7 } \right) \)
4)
Nishanth has a key-chain which is in the form of an equilateral triangle and a semicircle attached to a square of side 5 cm as shown in the Figure. Find its area.(π = 3.14, √3 = 1.732)
5)
Find the area of the door mat whose measures are as given in the Figure
(π = 3.14)

8th Standard English Medium Maths Subject Term 1 Measurements Book Back 3 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
A spinner of radius 7.5 cm is divided into 6 equal sectors. Find the area of each of the sectors.
2)
From the three vertices of an equilateral triangle of side 12 cm, Nishanth cuts sectors of 5 cm radius each and forms the following shape. Find the area of that shape. (π = 3.14)
3)
Pradeep wants to make a semicircular arch design at the entrance of his house with three equal sectors, as shown in the Fig.2.19 to be fitted in the iron frame. Find the length of the iron frame required and also the area of each of the sectors for which the mirrors to be fixed.
4)
Kamalesh has a dining table, circular in shape of radius 70 cm, whereas Tharun has a circular quadrant dining table of radius 140 cm. Whose dining table has a greater area? \(\left(\pi=\frac{22}{7}\right)\)
5)
Four identical medals, each of diameter 7 cm are placed as shown in Figure. Find the area of the shaded region between the medals. \(\left(\pi=\frac{22}{7}\right)\).

8th Standard English Medium Maths Subject Term 1 Measurements Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
The radius of a sector is 21cm and its central angle is 120°. Find the length of the arc
2)
The radius of a sector is 21cm and its central angle is 120°. Find area of the sector
3)
The radius of a sector is 21cm and its central angle is 120°. Find perimeter of sector.
4)
Find the central angle and area of a palm leaf fan (sector) of radius 10.5 cm and whose perimeter is 43 cm \(\left( \pi =\frac { 22 }{ 7 } \right) \)
5)
A circular shaped gymnasium ring of radius 35 cm is divided into 5 equal arcs shaded with different colours. Find the length of each of the arcs.

8th Standard English Medium Maths Subject Term 1 Measurements Book Back 2 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Find the area of the glass painting which has a triangle on a square as given in the figure.
2)
Find the area of the irregular polygon shaped fields given below.
3)
Which 3-D shapes do the following nets represent? Draw them.
4)
For each solid, three views are given. Identify for each solid, the corresponding top, front and side (T, F and S) views.

Solid Three views
5)
Can a polyhedron have 12 faces, 22 edges and 17 vertices?

8th Standard English Medium Maths Subject Term 1 Measurements Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Find the central angle of the shaded sectors (each circle is divided into equal sectors).

Sectors

Central angle of each sector (θ°)
2)
For the sectors with given measures, find the length of the arc, area and perimeter . (π = 3.14)
(i) central angle 45º, r = 16 cm
(ii) central angle 120º, d = 12.6 cm
3)
Find the central angle of each of the sectors whose measures are given below. \(\left( \pi =\frac { 22 }{ 7 } \right) \)

S.No area (A) length of the arc (l) radius (r)

(i) 462 cm² - 21 cm

(iii) 44 m 35 m
4)
A circle of radius 120 m is divided into 8 equal sectors. Find the length of the arc of each of the sectors.
5)
A circle of radius 70 cm is divided into 5 equal sectors. Find the area of each of the sectors.

8th Standard English Medium Maths Subject Term 1 Rational Numbers Book Back 3 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Write the following decimal numbers as rationals.
3.0
2)
Find 6 rational numbers between \(\frac { -7 }{ 11 } \) and \(\frac { 5 }{ -9 } \)
3)
One roll of ribbon is \(18\frac { 3 }{ 4 } \) m long. Sankari has four full rolls and one – third of a roll. How many meters of ribbon does Sankari have in total?
4)
Find the rational numbers that should be added and subtracted that will make the sum \(3\frac { 1 }{ 2 } +1\frac { 3 }{ 4 } +2\frac { 3 }{ 8 } \) to the nearest whole number.
5)
In the NEET exam, out of a total of 180 questions, a Jeyanth answered \(\frac { 19 }{ 30 } \) of the questions correctly and \(\frac { 5 }{ 18 } \) of the questions incorrectly. How many questions did Jeyanth not attend at all?

8th Standard English Medium Maths Subject Term 1 Rational Numbers Book Back 3 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Write the following decimal numbers as rationals.
3.0
2)
Write the following decimal numbers as rationals.
1.15
3)
Write the following rational numbers in descending and ascending order.
\(\frac { -3 }{ 5 } ,\frac { 7 }{ -10 } ,\frac { -15 }{ 20 } ,\frac { 14 }{ -30 } ,\frac { -8 }{ 15 } \)
4)
Add: \(\frac { -6 }{ 11 } ,\frac { 8 }{ 11 } ,\frac { -12 }{ 11 } \)
5)
Subtract \(\left( -2\frac { 6 }{ 11 } \right) \) from \(\left( -4\frac { 5 }{ 22 } \right) \)

8th Standard English Medium Maths Subject Term 1 Rational Numbers Book Back 2 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Find the rational numbers represented by each of the question marks marked on the following number lines.
2)
If \(\frac { 3 }{ 4 } \) of a box of apples weighs 3 kg and 225 gm, how much does a full box of apples weight?
3)
In a map, if 1 inch refers to 120 km, then find the distance between two cities B and C which are \(4\frac { 1 }{ 6 } \) inches and \(3\frac { 1 }{ 3 } \) inches from the city A which is in between the cities B and C.
4)
If \(\frac { 1 }{ 4 } \) of a ragi adai weighs 120 grams, what will be the weight of \(\frac { 2 }{ 3 } \) of the same ragi adai?
5)
Divide \(\frac{7}{36}\) by \(\frac{35}{81}\)

8th Standard English Medium Maths Subject Term 1 Rational Numbers Book Back 2 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
List five rational numbers between
–2 and 0
2)
Write four rational numbers equivalent to
\(\frac { -7 }{ 6 } \)
3)
Using average, write 3 rational numbers between \(\frac { 14 }{ 5 } \) and \(\frac { 16 }{ 3 } \)
4)
Divide: \(\frac { -21 }{ 5 } \) by \(\frac { -7 }{ -10 } \)
5)
Compare the following pairs of rational numbers.
\(\frac { 3 }{ -4 } ,\frac { -1 }{ 2 } \)

8th Standard English Medium Maths Subject Term 1 Rational Numbers Book Back 1 Mark Questions with Solution Part - II - by Question Bank Software - Jun 15, 2021 - View & Read

1)
Which of the following illustrates the inverse property for addition?
2)
Closure property is not true for division of rational numbers because of the number
3)
\(\frac { 1 }{ 2 } -\left( \frac { 3 }{ 4 } -\frac { 5 }{ 6 } \right) \neq \left( \frac { 1 }{ 2 } -\frac { 3 }{ 4 } \right) -\frac { 5 }{ 6 } \) illustrates that subtraction does not satisfy the ________ property for rational numbers.
4)
\(\left( 1-\frac { 1 }{ 2 } \right) \times \left( \frac { 1 }{ 2 } -\frac { 1 }{ 4 } \right) \div \left( \frac { 3 }{ 4 } -\frac { 1 }{ 2 } \right) \)=
5)
Which of the following is not an equivalent fraction of \(\frac{8}{12}\)?

8th Standard English Medium Maths Subject Term 1 Rational Numbers Book Back 1 Mark Questions with Solution Part - I - by Question Bank Software - Jun 15, 2021 - View & Read

1)
The number which is subtracted from \(\frac { -6 }{ 11 } \) to get \(\frac { 8 }{ 9 } \) is
2)
Which of the following rational numbers is the greatest?
3)
\(\frac { -5 }{ 4 } \) is a rational number which lies between
4)
The standard form of the sum \(\frac { 3 }{ 4 } +\frac { 5 }{ 6 } +\left( \frac { -7 }{ 12 } \right) \) is
5)
The sum of the digits of the denominator in the simplest form of \(\frac { 112 }{ 528 } \)

Source	Corporation tax	Income tax	Customs	Excise duties	Service Tax	Others
Income (in paise)	19	16	9	14	10	32

Particulars	Food	Education	Rent	Transport	Miscellaneous
Expenses (in %)	50 %	20 %	15 %	5 %	10 %

Ages	0-10	10-20	20-30	30-40	40-50	50-60	60-70	70-80
No. of patients	5	13	25	14	30	35	43	50

Continent	Asia	Africa	North America	South America	Europe	Australia	Antarctica
Area	30 %	20 %	16 %	12 %	7 %	6 %	9 %

215	200	120	350	800	600	350	400	180	210	170	305	204
220	425	540	315	640	700	790	340	586	660	785	290	300

Particulars	Seeds	Ploughing	Wages	Fertilizer	Harvest	Others
Expenses (Rs)	2000	6000	10000	7000	8000	3000

Particulars	Bricks	Steel	Cement	Timber	Labour	Others
Expenses:	10%	15%	25%	10%	20%	20%

Age group	10-15	16-21	22-27	28-33	34-39	40-45
No. of females	350	920	850	480	230	200

Pocket money	10-20	20-30	30-40	40-50	50-60	60-70	70-80	80-90
Number of Students	25	40	33	28	30	20	16	8

marks	0-10	10-20	20-30	30-40	40-50	50-60	60-70	70-80	80-90	90-100
Number of students	5	8	10	18	25	22	20	13	6	3

x	-3	-1	0	2	3
y	-15	-5	0	10	15

x	-3	-1	0	2	3
y	-15	-5	0	10	15

Quantity of milk	5	10	15	20
Cost of milk	150	300	450	600

10 -20
24-34
38-48
52-62

215	200	120	350	800	600	350	400	180	210	170	305	204
220	425	540	315	640	700	790	340	586	660	785	290	300

Class interval (Marks)	10-20	20-30	30-40	40-50	50-60	60-70	70-80	80-90
Frequency	4	6	8	12	10	14	5	7

S.No	area (A)	length of the arc (l)	radius (r)
(i)	462 cm²	-	21 cm
(iii)		44 m	35 m

215	200	120	350	800	600	350	400	180	210	170	305	204
220	425	540	315	640	700	790	340	586	660	785	290	300

12th Standard stateboard question papers & Study material

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11th Standard stateboard question papers & Study material

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கணிதம்

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பொருளியல்

இயற்பியல்

வேதியியல்

வரலாறு

வணிகக் கணிதம் மற்றும் புள்ளியியல்

கணினி அறிவியல்

கணக்குப்பதிவியல்

வணிகவியல்

கணினி பயன்பாடுகள்

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9th Standard stateboard question papers & Study material

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6th Standard stateboard question papers & Study material

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10th Standard stateboard question papers & Study material

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கணிதம்

215	200	120	350	800	600	350	400	180	210	170	305	204
220	425	540	315	640	700	790	340	586	660	785	290	300

215	200	120	350	800	600	350	400	180	210	170	305	204
220	425	540	315	640	700	790	340	586	660	785	290	300